public static void Resize(this Image source, String newFilename, Size newSize, long quality, ContentAlignment contentAlignment, ThumbMode mode)
{
Image image = source.Resize(newSize, quality, contentAlignment, mode);
using (EncoderParameters encoderParams = new EncoderParameters(1))
{
using (EncoderParameter parameter = (encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, quality)))
{
ImageCodecInfo encoder = null;
//取得擴展名
string ext = Path.GetExtension(newFilename);
if (string.IsNullOrEmpty(ext))
ext = ".jpg";
//根據擴展名得到解碼、編碼器
foreach (ImageCodecInfo codecInfo in ImageCodecInfo.GetImageEncoders())
{
if (Regex.IsMatch(codecInfo.FilenameExtension, string.Format(@"(;|^)\*\{0}(;|$)", ext), RegexOptions.IgnoreCase))
{
encoder = codecInfo;
break;
}
}
DirectoryInfo dir = new DirectoryInfo(Path.GetDirectoryName(newFilename));
if(dir.Exists == false) dir.Create();
image.Save(newFilename, encoder, encoderParams);
}
}
}
private void modImage(RotateFlipType rft)
{
if (this._filename.Length == 0)
{
return;
}
this._bmp.RotateFlip(rft);
this.imageBox.Image = this._bmp;
this.imageBox.ZoomToFit();
if (this.checkBoxSave.Checked)
{
if (".jpg.JPG.jpeg.JPEG".Contains(Path.GetExtension(this._filename)))
{
// 20161016: prevent jpg quality loss requires to set the quality level explicitly
ImageCodecInfo jgpEncoder = this.GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters myEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 100L);
myEncoderParameters.Param[0] = myEncoderParameter;
this._bmp.Save(this._filename, jgpEncoder, myEncoderParameters);
myEncoderParameter.Dispose();
}
else
{
// tread other file type as they are
this._bmp.Save(this._filename);
}
}
try {
this._parent.Focus();
} catch {; }
}
static void Main(string[] args)
{
FileSize("noname.jpg");
var image = new Bitmap("noname.jpg");
var jgpEncoder = GetEncoder(ImageFormat.Jpeg);
var myEncoder = Encoder.Quality;
var myEncoderParameters = new EncoderParameters(1);
var myEncoderParameter = new EncoderParameter(myEncoder, 50L);
myEncoderParameters.Param[0] = myEncoderParameter;
image.Save(@"TestPhotoQualityFifty.jpg", jgpEncoder, myEncoderParameters);
FileSize("TestPhotoQualityFifty.jpg");
myEncoderParameter = new EncoderParameter(myEncoder, 100L);
myEncoderParameters.Param[0] = myEncoderParameter;
image.Save(@"TestPhotoQualityHundred.jpg", jgpEncoder, myEncoderParameters);
FileSize("TestPhotoQualityHundred.jpg");
myEncoderParameter = new EncoderParameter(myEncoder, 70L);
myEncoderParameters.Param[0] = myEncoderParameter;
image.Save(@"TestPhotoQualityZero.jpg", jgpEncoder, myEncoderParameters);
FileSize("TestPhotoQualityZero.jpg");
Console.ReadLine();
}
/*
* 使用例子：
* ImageCodecInfo jgpEncoder = PaintTools.GetEncoderByFormat(ImageFormat.Jpeg);
* EncoderParameters encoderParameters = PaintTools.GetEncoderParametersByNumber(100);
* bitMapCut.Save(AppDomain.CurrentDomain.BaseDirectory + savePicPath + "_.jpg", jgpEncoder, encoderParameters);
*/
/// <summary>
/// 设置图片品质
/// </summary>
/// <param name="compressionRate">100是最好品质</param>
/// <returns></returns>
public static EncoderParameters GetEncoderParametersByNumber(int compressionRate = 100)
{
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.EncoderParameter encoderParameter = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, compressionRate);//这里设品质
encoderParameters.Param[0] = encoderParameter;
return(encoderParameters);
}
protected static void KucukBoyut(System.Drawing.Image orjinalFoto, int boyut, string dosyaAdi)
{
System.Drawing.Bitmap islenmisFotograf = null;
System.Drawing.Graphics grafik = null;
int hedefGenislik = boyut;
int hedefYukseklik = boyut;
int new_width, new_height;
new_height = (int)Math.Round(((float)orjinalFoto.Height * (float)boyut) / (float)orjinalFoto.Width);
new_width = hedefGenislik;
hedefYukseklik = new_height;
new_width = new_width > hedefGenislik ? hedefGenislik : new_width;
new_height = new_height > hedefYukseklik ? hedefYukseklik : new_height;
if (new_height > 210)
{
hedefYukseklik = 210;
}
islenmisFotograf = new System.Drawing.Bitmap(hedefGenislik, hedefYukseklik);
grafik = System.Drawing.Graphics.FromImage(islenmisFotograf);
grafik.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.White), new System.Drawing.Rectangle(0, 0, hedefGenislik, hedefYukseklik));
int paste_x = (hedefGenislik - new_width) / 2;
int paste_y = (hedefYukseklik - new_height) / 2;
grafik.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
grafik.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
grafik.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Default;
System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 95L);
grafik.DrawImage(orjinalFoto, paste_x, paste_y, new_width, new_height);
islenmisFotograf.Save(HttpContext.Current.Server.MapPath("../Urunler/Logo/" + dosyaAdi), codec, eParams);
}
} // end of color
//使用方法调用GenerateHighThumbnail()方法即可
//参数oldImagePath表示要被缩放的图片路径
//参数newImagePath表示缩放后保存的图片路径
//参数width和height分别是缩放范围宽和高
public static void GenerateHighThumbnail(string oldImagePath, string newImagePath, int width, int height)
{
System.Drawing.Image oldImage = System.Drawing.Image.FromFile(oldImagePath);
int newWidth = AdjustSize(width, height, oldImage.Width, oldImage.Height).Width;
int newHeight = AdjustSize(width, height, oldImage.Width, oldImage.Height).Height;
//。。。。。。。。。。。
System.Drawing.Image thumbnailImage = oldImage.GetThumbnailImage(newWidth, newHeight, new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback), IntPtr.Zero);
System.Drawing.Bitmap bm = new System.Drawing.Bitmap(thumbnailImage);
//处理JPG质量的函数
System.Drawing.Imaging.ImageCodecInfo ici = GetEncoderInfo("image/jpeg");
if (ici != null)
{
System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(1);
ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100);
bm.Save(newImagePath, ici, ep);
//释放所有资源，不释放，可能会出错误。
ep.Dispose();
ep = null;
}
ici = null;
bm.Dispose();
bm = null;
thumbnailImage.Dispose();
thumbnailImage = null;
oldImage.Dispose();
oldImage = null;
}
/// <summary>
/// Resize the image to the specified width and height.
/// </summary>
/// <param name="image">The image to resize.</param>
/// <param name="width">The width to resize to.</param>
/// <param name="height">The height to resize to.</param>
/// <returns>The resized image.</returns>
private static void ResizeImage(Image image, int width, int height, string path)
{
int quality = 90;
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
encoderParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)quality);
var destRect = new Rectangle(0, 0, width, height);
var destImage = new Bitmap(width, height, PixelFormat.Format24bppRgb);
destImage.SetResolution(image.HorizontalResolution, image.VerticalResolution);
using (var graphics = Graphics.FromImage(destImage))
{
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
using (var wrapMode = new ImageAttributes())
{
wrapMode.SetWrapMode(WrapMode.TileFlipXY);
graphics.DrawImage(image, destRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, wrapMode);
}
}
destImage.Save(path, GetImageCodeInfo("image/jpeg"), encoderParameters);
}
public void ConvertToSinglePageTiffs(string fileName, string destFolder)
{
Image image = Image.FromFile(fileName);
ImageCodecInfo codecInfo = GetCodecInfo(TIFF_CODEC);
FrameDimension frameDim = new FrameDimension(image.FrameDimensionsList[0]);
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, ENCODING_SCHEME);
for (int i = 0; i < image.GetFrameCount(frameDim); i++)
{
image.SelectActiveFrame(frameDim, i);
string fileNameWOExt = Path.GetFileNameWithoutExtension(fileName);
string newFileName = string.Concat(fileNameWOExt, "_", (i + 1).ToString(), TIFF_FILE_EXTENSION);
string folder = Path.Combine(Path.GetDirectoryName(fileName), destFolder);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
image.Save(Path.Combine(folder, newFileName), codecInfo, encoderParams);
}
}
public static void CompressImage(Image sourceImage, int imageQuality, string savePath)
{
try
{
//Create an ImageCodecInfo-object for the codec information
ImageCodecInfo jpegCodec = null;
//Set quality factor for compression
EncoderParameter imageQualitysParameter = new EncoderParameter(
System.Drawing.Imaging.Encoder.Quality, imageQuality);
//List all avaible codecs (system wide)
ImageCodecInfo[] alleCodecs = ImageCodecInfo.GetImageEncoders();
EncoderParameters codecParameter = new EncoderParameters(1);
codecParameter.Param[0] = imageQualitysParameter;
//Find and choose JPEG codec
for (int i = 0; i < alleCodecs.Length; i++)
{
if (alleCodecs[i].MimeType == "image/jpeg")
{
jpegCodec = alleCodecs[i];
break;
}
}
//Save compressed image
sourceImage.Save(HttpContext.Current.Server.MapPath(savePath), jpegCodec, codecParameter);
}
catch (Exception ex)
{
}
}
public ActionResult Thumbnail(string path)
{
var myCallback =
new Image.GetThumbnailImageAbort(ThumbnailCallback);
var paths = new List<string>(2);
BuildPath(path, out folderPath, out resourcePath);
var folder = session.OpenFolder(folderPath + "/");
var resource = folder.GetResource(resourcePath + "/");
var sourceStream = resource.GetReadStream();
Bitmap bitmap = null;
try
{
bitmap = new Bitmap(sourceStream);
}
catch (Exception)
{
var fs = new FileStream(Server.MapPath("~/Content/kendo/2014.2.716/Bootstrap/imagebrowser.png"), FileMode.Open);
var tempBs = new byte[fs.Length];
fs.Read(tempBs, 0, tempBs.Length);
return new FileContentResult(tempBs, "image/jpeg");
}
var myThumbnail = bitmap.GetThumbnailImage(84, 70, myCallback, IntPtr.Zero);
var ms = new MemoryStream();
var myEncoderParameters = new EncoderParameters(1);
var myEncoderParameter = new EncoderParameter(Encoder.Quality, 25L);
myEncoderParameters.Param[0] = myEncoderParameter;
myThumbnail.Save(ms, GetEncoderInfo("image/jpeg"), myEncoderParameters);
ms.Position = 0;
var bytes = ms.ToArray();
return new FileContentResult(bytes, "image/jpeg");
}
static async Task ConvertImages()
{
var folders = new List<string> {
@"day-1",
@"day-2",
@"day-3",
@"day-4",
@"day-5",
@"day-6"
};
//Test
var testImg = Guid.Parse("13911e38-af31-48eb-a39d-b5e695124351");
var allFiles = folders
.Select(folder => ExtractImageMetaData(folder))
.SelectMany(img => img)
//.Where(f => f.Id == testImg)
.ToArray();
var numFiles = allFiles.Count();
const long quality = 100L;
var qualityParam = System.Drawing.Imaging.Encoder.Quality;
var jpgEncoder = ImageCodecInfo.GetImageDecoders().First(enc => enc.FormatID == ImageFormat.Jpeg.Guid);
var parameters = new EncoderParameters(1);
parameters.Param[0] = new EncoderParameter(qualityParam, quality);
await Task.WhenAll(allFiles
//.Take(100)
.Select(file => CopyImage(file, jpgEncoder, parameters)));
Debugger.Break();
}
private void sendscreen(string res, int v)
{
try
{
int width = Convert.ToInt32(res.Split('x')[0]);
int height = Convert.ToInt32(res.Split('x')[1]);
using (Bitmap b = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height))
{
using (Graphics g = Graphics.FromImage(b))
{
g.CopyFromScreen(0, 0, 0, 0, b.Size);
using (Image tmp = b.GetThumbnailImage(width, height, null, System.IntPtr.Zero))
{
using (Bitmap thumBitmap = new Bitmap(tmp))
{
ImageCodecInfo jgpEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
EncoderParameters myEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
EncoderParameter myEncoderParameter = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, v);
myEncoderParameters.Param[0] = myEncoderParameter;
using (MemoryStream ms = new MemoryStream())
{
thumBitmap.Save(ms, jgpEncoder, myEncoderParameters);
Send("RemoteDesktop" + Convert.ToBase64String(ms.ToArray()));
}
}
}
}
}
}
catch
{
}
}
public static bool TakeScreenshot(int quality_quotient)
{
Bitmap resultant = null;
Graphics gfxScreenshot = null;
latestScreenshot = new MemoryStream();
try
{
resultant = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
gfxScreenshot = Graphics.FromImage(resultant);
gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
}
catch
{
return false;
}
ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
// Setting the picture quality
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, (long)quality_quotient);
myEncoderParameters.Param[0] = myEncoderParameter;
resultant.Save(latestScreenshot, jgpEncoder, myEncoderParameters);
return true;
}
//http://social.msdn.microsoft.com/forums/en-US/wpf/thread/0f037b9c-779d-45ad-b797-01c25999491b
public static BitmapImage ImageFromGDIPlus(byte[] bytes)
{
var guid = Guid.NewGuid();
if (Directory.Exists(@"C:\Temp\") == false)
Directory.CreateDirectory(@"C:\Temp\");
var stream = new MemoryStream(bytes);
var badMetadataImage = new Bitmap(stream);
ImageCodecInfo myImageCodecInfo;
Encoder myEncoder;
EncoderParameter myEncoderParameter;
EncoderParameters myEncoderParameters;
// get an ImageCodecInfo object that represents the JPEG codec
myImageCodecInfo = GetEncoderInfo("image/jpeg");
// Create an Encoder object based on the GUID for the Quality parameter category
myEncoder = Encoder.Quality;
// Create an EncoderParameters object
// An EncoderParameters object has an array of EncoderParameter objects.
// In this case, there is only one EncoderParameter object in the array.
myEncoderParameters = new EncoderParameters(1);
// Save the image as a JPEG file with quality level 75.
myEncoderParameter = new EncoderParameter(myEncoder, 75L);
myEncoderParameters.Param[0] = myEncoderParameter;
badMetadataImage.Save(@"C:\Temp\" + guid + ".bmp", myImageCodecInfo, myEncoderParameters);
// Create the source to use as the tb source
var bi = new BitmapImage();
bi.BeginInit();
bi.UriSource = new Uri(@"C:\Temp\" + guid + ".bmp", UriKind.Absolute);
bi.EndInit();
return bi;
}
private static void GenerateThumbnail(HttpPostedFileBase file, string rootFolder, string fileName)
{
using (var image = Image.FromStream(file.InputStream, true, true)) /* Creates Image from specified data stream */
{
using (var thumb = image.GetThumbnailImage(
100, /* width*/
100, /* height*/
() => false,
IntPtr.Zero))
{
var jpgInfo = ImageCodecInfo.GetImageEncoders().Where(codecInfo => codecInfo.MimeType == "image/png").First(); /* Returns array of image encoder objects built into GDI+ */
using (var encParams = new EncoderParameters(1))
{
var appDataThumbnailPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, rootFolder, "thumbnails");
if (!Directory.Exists(appDataThumbnailPath))
{
Directory.CreateDirectory(appDataThumbnailPath);
}
string outputPath = Path.Combine(appDataThumbnailPath, "thumb_" + fileName);
long quality = 100;
encParams.Param[0] = new EncoderParameter(Encoder.Quality, quality);
thumb.Save(outputPath, jpgInfo, encParams);
}
}
}
}
/// <summary>
/// 保存到Jpeg图片，且可以设置压缩质量
/// </summary>
/// <param name="image"></param>
/// <param name="filename">保存路径</param>
/// <param name="quality">压缩质量</param>
public static void SaveJpeg(this Image image, string filename, long quality) {
var encoder = ImageCodecInfo.GetImageEncoders().First(
c => c.FormatID == ImageFormat.Jpeg.Guid);
var parameters = new EncoderParameters();
parameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
image.Save(filename, encoder, parameters);
}
public static byte[] CompressImage(Image ImageToCompress, long CompressionLevel)
{
//grab the memory stream to save into
using (var MemoryStreamToSave = new MemoryStream())
{
//declare the parameters
var EncoderParams = new EncoderParameters(1);
//set the compression level
EncoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, CompressionLevel);
//grab the codec info
var EncoderInfo = GetEncoderInfo("image/jpeg");
//go save the image to the memory stream
ImageToCompress.Save(MemoryStreamToSave, EncoderInfo, EncoderParams);
//close the memory stream
MemoryStreamToSave.Flush();
//close the memory stream
MemoryStreamToSave.Close();
//return the byte array now
return MemoryStreamToSave.ToArray();
}
}
public static void BmpSave(Bitmap newBmp, string outFile)
{
EncoderParameters encoderParams = new EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
//获得包含有关内置图像编码解码器的信息的ImageCodecInfo 对象。
ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo jpegICI = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICI = arrayICI[x];//设置JPEG编码
break;
}
}
if (jpegICI != null)
{
newBmp.Save(outFile, jpegICI, encoderParams);
}
else
{
newBmp.Save(outFile, ImageFormat.Jpeg);
}
newBmp.Dispose();
}
public static void Save(Image image, int maxWidth, int maxHeight, int quality, string filePath)
{
if (image != null || !image.Equals(0))
{
int originalWidth = image.Width;
int originalHeight = image.Height;
float ratioX = maxWidth / (float)originalWidth;
float ratioY = maxHeight / (float)originalHeight;
float ratio = Math.Min(ratioX, ratioY);
int newWidth = (int)(originalWidth * ratio);
int newHeight = (int)(originalHeight * ratio);
newImage = new Bitmap(newWidth, newHeight, PixelFormat.Format24bppRgb);
using (Graphics graphics = Graphics.FromImage(newImage))
{
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.DrawImage(image, 0, 0, newWidth, newHeight);
}
ImageCodecInfo imageCodecInfo = GetEncoderInfo(ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.Quality;
encoderParameters = new EncoderParameters(1);
EncoderParameter encoderParameter = new EncoderParameter(encoder, quality);
encoderParameters.Param[0] = encoderParameter;
newImage.Save(filePath, imageCodecInfo, encoderParameters);
}
}
/// <summary>
/// Saves an image as a jpeg image, with the given quality
/// </summary>
/// <param name="path">Path to which the image would be saved.</param>
/// <param name="quality">An integer from 0 to 100, with 100 being the
/// highest quality</param>
/// <exception cref="ArgumentOutOfRangeException">
/// An invalid value was entered for image quality.
/// </exception>
public void SavePNG(Image[] images, int quality, string workspace)
{
//ensure the quality is within the correct range
if ((quality < 0) || (quality > 100))
{
//create the error message
string error = string.Format("Jpeg image quality must be between 0 and 100, with 100 being the highest quality. A value of {0} was specified.", quality);
//throw a helpful exception
throw new ArgumentOutOfRangeException(error);
}
//create an encoder parameter for the image quality
var qualityParam = new EncoderParameter(Encoder.Quality, quality);
//get the jpeg codec
ImageCodecInfo jpegCodec = converter.GetEncoderInfo("image/png");
//create a collection of all parameters that we will pass to the encoder
var encoderParams = new EncoderParameters(1);
//set the quality parameter for the codec
encoderParams.Param[0] = qualityParam;
//save the images using the codec and the parameters
//each image will be saved into it's folder
for (int i = 0; i < images.Length; i++)
{
for (int j = 0; j < dirs.Length; j++)
{
string desination = (path + splitter + workspace + dirs[i]);
Check(desination);
images[i].Save(desination, jpegCodec, encoderParams);
}
}
}
/// <summary>
/// Takes a screen-size + internal bezel width sized bitmap and crops it to remove the area taken up by the bezels. Making the image appear as if it was seen through a window.
/// </summary>
/// <param name="filePaths">The file paths.</param>
/// <remarks>
/// Writes a file of the same name with -wallpapered appended to the end in JPEG format to the same location as the source.
/// </remarks>
public static void Main(String[] filePaths)
{
if(filePaths.Length < 1)
{
DisplayInstructions();
return;
}
foreach(var filePath in filePaths)
{
String fileName = Path.GetFileNameWithoutExtension(filePath);
String fileDirectory = Path.GetDirectoryName(filePath);
String jpgFilePath = String.Format("{0}{1}{2}-wallpapered.jpg", fileDirectory, Path.DirectorySeparatorChar, fileName);
using(Bitmap sourceBitmap = new Bitmap(filePath))
{
//Check size
if(sourceBitmap.Width != TotalMonitorWidth || sourceBitmap.Height != MaximumMonitorHeight)
{
DisplayInstructions();
continue;
}
Bitmap wallpaper = CreateWallpaper(sourceBitmap);
//Save as JPEG
var jpegImageCodecInfo = GetEncoderInfo("image/jpeg");
var qualityEncoder = Encoder.Quality;
var encoderParameters = new EncoderParameters(1);
var encoderParameter = new EncoderParameter(qualityEncoder, (Int64)JPEGQuality);
encoderParameters.Param[0] = encoderParameter;
wallpaper.Save(jpgFilePath, jpegImageCodecInfo, encoderParameters);
}
}
}
public void BaseCreateResponsive(ImageCreateResponsive method)
{
var mediaType = new MediaTypes(this.Strategy.Session).Jpeg;
byte[] content;
// Stream should be left open for Save to work
using (Stream stream = new MemoryStream(this.Original.Content))
{
var responsive = new Bitmap(stream);
responsive = responsive.Rotate();
responsive = responsive.MaxHeight(method.MaxHeight ?? 600);
var encoder = ImageCodecInfo.GetImageEncoders().FirstOrDefault(e => e.MimeType == mediaType.Name);
var encoderParams = new EncoderParameters(1);
var qualityParam = Encoder.Quality;
encoderParams.Param[0] = new EncoderParameter(qualityParam, 72L);
content = responsive.Save(encoder, encoderParams);
}
if (!this.ExistResponsive || !content.SequenceEqual(this.Responsive.Content))
{
if (this.ExistResponsive)
{
this.Responsive.Delete();
}
this.Responsive = new MediaBuilder(this.Strategy.Session).WithContent(content).WithMediaType(mediaType).Build();
}
}
public static EncoderParameters getParameters(int jpegQuality, ScreenshotFormat format)
{
EncoderParameters result;
switch(format)
{
case ScreenshotFormat.BMP:
result = new EncoderParameters(1);
result.Param[0] = new EncoderParameter(Encoder.ColorDepth, 24);
break;
case ScreenshotFormat.JPEG:
result = new EncoderParameters(1);
result.Param[0] = new EncoderParameter(Encoder.Quality, jpegQuality);
break;
case ScreenshotFormat.TIFF:
result = new EncoderParameters(2);
EncoderParameter parameter =
new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionLZW);
result.Param[0] = parameter;
parameter = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.LastFrame);
result.Param[1] = parameter;
break;
default:
result = new EncoderParameters(2);
result.Param[0] = new EncoderParameter(Encoder.Compression,(long)EncoderValue.CompressionCCITT4);
result.Param[1] = new EncoderParameter(Encoder.ColorDepth, (long)24);
break;
}
return result;
}
public byte[] Capture()
{
if (_camDriver.IsVideoStarted() == false)
{
_camDriver.StartVideo();
}
// wait for the camera to capture something
//if (_camDriver.Capture())
//{
_camEvent.WaitOne();
if (_captureStream == null)
{
_captureStream = new MemoryStream();
}
ImageCodecInfo jpgEncoder = ImageCodecInfo.GetImageEncoders().Single(x => x.FormatDescription == "JPEG");
System.Drawing.Imaging.Encoder encoder2 = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters(1);
EncoderParameter parameter = new EncoderParameter(encoder2, 50L);
parameters.Param[0] = parameter;
_captureStream.Seek(0, SeekOrigin.Begin);
_camImage.Save(_captureStream, jpgEncoder, parameters);
//_camImage.Save(_captureStream, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] buffer = new byte[_captureStream.Length];
Console.WriteLine("Sending image with size " + buffer.Length);
//_captureStream.Read(buffer,0,(int)_captureStream.Length);
buffer = _captureStream.ToArray();
return buffer;
//return b;
}
public static Stream ResizeImage(Stream originalImage, int canvasWidth, int canvasHeight)
{
using (Image img = Image.FromStream(originalImage))
{
Image resizedImage = ResizeImage(img, canvasWidth, canvasHeight);
System.Drawing.Imaging.ImageCodecInfo info = ImageCodecInfo.GetImageEncoders()
.Where(codec => String.Compare(codec.FilenameExtension, "*.png", true) == 0)
.FirstOrDefault();
//MemoryStream stream = new MemoryStream();
MemoryStream stream = new MemoryStream();
if (info != null)
{
EncoderParameters encoderParameters;
encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality,
100L);
resizedImage.Save(stream, info, encoderParameters);
}
return stream;
}
}
public static byte[] GetBytes(this Bitmap bitmap, OutputFormat outputFormat)
{
using (var memStream = new MemoryStream())
{
bitmap.MakeTransparent(BackgroundColour);
switch (outputFormat)
{
case OutputFormat.Jpeg:
bitmap.Save(memStream, ImageFormat.Jpeg);
break;
case OutputFormat.Gif:
bitmap.Save(memStream, ImageFormat.Gif);
break;
case OutputFormat.Png:
bitmap.Save(memStream, ImageFormat.Png);
break;
case OutputFormat.HighQualityJpeg:
var p = new EncoderParameters(1);
p.Param[0] = new EncoderParameter(Encoder.Quality, (long)95);
bitmap.Save(memStream, GetImageCodeInfo("image/jpeg"), p);
break;
}
return memStream.ToArray();
}
}
public static void Process(ClientPacket.Screen screen)
{
Screen.power = screen.Power;
if (Screen.power != 0)
{
//屏幕
if (screen.Quality != 0)
{
ps = new EncoderParameters(1);
ps.Param[0] = new EncoderParameter(Encoder.Quality, screen.Quality);
}
if (Screen.thread == null || !Screen.thread.IsAlive)
{
Screen.thread = new Thread(new ThreadStart(Work));
Screen.thread.Start();
}
//鼠标
if (screen.mouse != null)
NativeMethods.mouse_event(screen.mouse.dwFlags, screen.mouse.dx, screen.mouse.dy, 0, 0);
//键盘
if (screen.keybd != null)
NativeMethods.keybd_event(screen.keybd.bVk, screen.keybd.bScan, screen.keybd.dwFlags, 0);
}
}
public void CreateThumnail(HttpPostedFileBase file, string folderPath, string fileSuffix)
{
using (var image = Image.FromStream(file.InputStream, true, true)) /* Creates Image from specified data stream */
{
using (var thumb = image.GetThumbnailImage(
36, /* width*/
30, /* height*/
() => false,
IntPtr.Zero))
{
var jpgInfo = ImageCodecInfo.GetImageEncoders().Where(codecInfo => codecInfo.MimeType == "image/png").First(); /* Returns array of image encoder objects built into GDI+ */
using (var encParams = new EncoderParameters(1))
{
if (!Directory.Exists(folderPath))
{
Directory.CreateDirectory(folderPath);
}
//Change file extention to thumb
var fileName = Path.ChangeExtension(file.FileName, "thumb");
string outputPath = Path.Combine(folderPath, GetFileNameWithSuffix(fileName, fileSuffix));
long quality = 100;
encParams.Param[0] = new EncoderParameter(Encoder.Quality, quality);
thumb.Save(outputPath, jpgInfo, encParams);
//thumb.Save(Path.ChangeExtension(file.FileName, "thumb"))
}
}
}
}
public static void work() {
keepGoing = true;
Task.Factory.StartNew(()=>check());
do {
Bitmap img = GetScreenShot();
ImageCodecInfo[] codec = ImageCodecInfo.GetImageEncoders();
// initialisation d'un tableau de dimension 2 de parametres d'encodages
EncoderParameters encodeurs = new EncoderParameters(2);
// parametre qualite
EncoderParameter qualite = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality,quality);
// Parametre compression
EncoderParameter compression = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, compress);
// remplir tableau parametre
encodeurs.Param[0] = qualite;
encodeurs.Param[1] = compression;
using (MemoryStream stm = new MemoryStream())
{
img.Save(stm, codec[1], encodeurs);
if (Cnx.sendArray(stm.ToArray(), "04")) { Console.WriteLine("success "); }
}
Thread.Sleep(sleeptime);
} while (keepGoing);
}
public static void SaveJpegToStreamWithCompressionSetting(Image image, long compression, Stream savestream)
{
var eps = new EncoderParameters(1);
eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, compression);
var ici = GetEncoderInfo("image/jpeg");
image.Save(savestream, ici, eps);
}
public IEnumerable<ProcessFileResult> ProcessFiles(string[] files, Settings settings)
{
ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Jpeg);
var encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, settings.Quality);
foreach (var file in files)
{
using (var original = (Bitmap)Image.FromFile(file))
{
string fileName = Path.Combine(settings.OutputDir, Path.GetFileName(file));
if (!settings.OverwriteFiles && File.Exists(fileName))
{
yield return new ProcessFileResult { ErrorMessage = "File name is the same." };
}
if (settings.Width > 0 || settings.Height > 0)
{
using (Bitmap scaled = original.Scale(settings.Size))
{
AddLogoOrText(scaled, settings);
scaled.Save(fileName, jgpEncoder, encoderParameters);
}
}
else
{
AddLogoOrText(original, settings);
original.Save(fileName, jgpEncoder, encoderParameters);
}
yield return new ProcessFileResult {FileInfo = new FileInfo(fileName)};
}
}
}
/// <summary>
/// Save an Image as a JPeg with a given compression
/// Note: Filename suffix will not affect mime type which will be Jpeg.
/// </summary>
/// <param name="image">Image: Image to save</param>
/// <param name="fileName">String: File name to save the image as. Note: suffix will not affect mime type which will be Jpeg.</param>
/// <param name="compression">Long: Value between 0 and 100.</param>
private static void SaveJpegWithCompressionSetting(Image image, string fileName, long compression)
{
var eps = new EncoderParameters(1);
eps.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, compression);
var ici = GetEncoderInfo("image/jpeg");
image.Save(fileName, ici, eps);
}
public static void SaveJPG100(this Bitmap image, MemoryStream stream)
{
stream.Flush();
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, 75L);
image.Save(stream, GetEncoder(ImageFormat.Jpeg), encoderParameters);
}
public static void SaveToFileInQuality(this Image image, string path, ImageFormat format)
{
var parameters = new EncoderParameters();
parameters.Param[0] = new EncoderParameter(Encoder.Quality, new long[] { 90 });
var encoder = ImageCodecInfo.GetImageEncoders().First(x => x.FormatID == format.Guid);
image.Save(path, encoder, parameters);
}
/// <summary>
/// Convert Tiff image to another mime-type bitmap
/// </summary>
/// <param name="tiffImage">Source TIFF file</param>
/// <param name="mimeType">Desired result mime-type</param>
/// <returns>Converted image</returns>
public Bitmap ConvertTiffToBitmap(Image tiffImage, string mimeType)
{
var imageCodecInfo = ImageCodecInfo.GetImageEncoders().FirstOrDefault(encoder => encoder.MimeType == "image/tiff");
if (imageCodecInfo == null)
{
return null;
}
Bitmap sourceImg;
using (var memoryStream = new MemoryStream())
{
// Setting encode params
var imageEncoderParams = new EncoderParameters(1);
imageEncoderParams.Param[0] = new EncoderParameter(Encoder.Quality, 100L);
tiffImage.Save(memoryStream, imageCodecInfo, imageEncoderParams);
tiffImage.Dispose();
var ic = new ImageConverter();
// Reading stream data to new image
var tempTiffImage = (Image)ic.ConvertFrom(memoryStream.GetBuffer());
// Setting new result mime-type
imageCodecInfo = ImageCodecInfo.GetImageEncoders().FirstOrDefault(encoder => encoder.MimeType == mimeType);
if (tempTiffImage != null) tempTiffImage.Save(memoryStream, imageCodecInfo, imageEncoderParams);
sourceImg = new Bitmap(Image.FromStream(memoryStream, true));
}
return sourceImg;
}
/// <summary>
/// 調整圖片壓縮解析度
/// </summary>
public static string ToBase64String_x1(Bitmap newBmp, ImageFormat iFormat)
{
MemoryStream ms = new MemoryStream();
//save
ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 30L);
myEncoderParameters.Param[0] = myEncoderParameter;
newBmp.Save(ms, jgpEncoder, myEncoderParameters);
//Bitmap new2Bmp = new Bitmap(ms);
//new2Bmp.Save(@"c:\test002.jpg", iFormat);
//newBmp.Save(ms, iFormat);
ms.Seek(0, SeekOrigin.Begin);
//建立一個byte
//並且定義長度為MemoryStream的長度
byte[] bytes = new byte[ms.Length];
//MemoryStream讀取資料
ms.Read(bytes, 0, (int)ms.Length);
ms.Close();
return Convert.ToBase64String(bytes);
}
/// <summary>
/// 将<paramref name="sourceStream"/>压缩大小
/// </summary>
/// <param name="sourceStream"></param>
/// <param name="ouputStream"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public static void Compress(Stream sourceStream, Stream ouputStream, int width, int height, bool highQuality)
{
System.Drawing.Image source = null;
Graphics gdiobj = null;
try
{
source = System.Drawing.Image.FromStream(sourceStream);
using (Bitmap img = new Bitmap(width, height))
{
img.SetResolution(source.HorizontalResolution, source.VerticalResolution);
gdiobj = Graphics.FromImage(img);
gdiobj.CompositingQuality = highQuality ? CompositingQuality.HighQuality : CompositingQuality.HighSpeed;
gdiobj.SmoothingMode = highQuality ? SmoothingMode.HighQuality : SmoothingMode.HighSpeed;
gdiobj.InterpolationMode = highQuality ? InterpolationMode.HighQualityBicubic : InterpolationMode.Low;
gdiobj.PixelOffsetMode = highQuality? PixelOffsetMode.HighQuality: PixelOffsetMode.HighSpeed;
gdiobj.FillRectangle(new SolidBrush(System.Drawing.Color.FromArgb(0, System.Drawing.Color.Transparent)), 0, 0, width, height);
Rectangle destrect = new Rectangle(0, 0, width, height);
gdiobj.DrawImage(source, destrect, 0, 0, source.Width,
source.Height, GraphicsUnit.Pixel);
using (System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(1))
{
ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)1);
if (!highQuality)
{
img.Save(ouputStream, ImageFormat.Png);
}
else
{
System.Drawing.Imaging.ImageCodecInfo ici = GetEncoderInfo("image/png");
if (ici != null)
{
img.Save(ouputStream, ici, ep);
}
else
{
img.Save(ouputStream, System.Drawing.Imaging.ImageFormat.Png);
}
}
}
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (source != null)
{
source.Dispose();
}
if (gdiobj != null)
{
gdiobj.Dispose();
}
}
}
public static string extractImagefromPdf(string pdfSource)
{
//var pdfsource = System.AppDomain.CurrentDomain.BaseDirectory + "App_Data\\marksheet.pdf-mysigned";
PdfReader pdf = new PdfReader(pdfSource);
RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(pdfSource);
try
{
PdfDictionary pd = pdf.GetPageN(1);
PdfDictionary res = (PdfDictionary)PdfReader.GetPdfObject(pd.Get(PdfName.RESOURCES));
PdfDictionary xobj = (PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));
if (xobj != null)
{
foreach (PdfName name in xobj.Keys)
{
PdfObject obj = xobj.Get(name);
if (obj.IsIndirect())
{
PdfDictionary tg = (PdfDictionary)PdfReader.GetPdfObject(obj);
PdfName type = (PdfName)PdfReader.GetPdfObject(tg.Get(PdfName.SUBTYPE));
if (PdfName.IMAGE.Equals(type))
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if ((bytes != null))
{
using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))
{
memStream.Position = 0;
System.Drawing.Image img = System.Drawing.Image.FromStream(memStream);
var outputPath = System.AppDomain.CurrentDomain.BaseDirectory + "App_Data\\";
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
string path = Path.Combine(outputPath, String.Format(@"{0}.bmp", 1));
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = GetImageEncoder("BMP");
img.Save(path, jpegEncoder, parms);
}
}
}
}
}
}
return("completed");
}
catch (Exception e)
{
return(e.Message.ToString());
}
finally
{
pdf.Close();
}
}
/// <summary>
/// 保存图片
/// </summary>
/// <param name="image">Image 对象</param>
/// <param name="savePath">保存路径</param>
/// <param name="ici">指定格式的编解码参数</param>
private static void SaveImage(Image image, string savePath, ImageCodecInfo ici)
{
//设置 原图片 对象的 EncoderParameters 对象
System.Drawing.Imaging.EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters(1);
parameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ((long)100));
image.Save(savePath, ici, parameters);
parameters.Dispose();
}
//--
//-- save bitmap object to JPEG of specified quality level
//--
private static void BitmapToJPEG(Bitmap objBitmap, string strFilename, long lngCompression = 75)
{
System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.ImageCodecInfo objImageCodecInfo = GetEncoderInfo("image/jpeg");
objEncoderParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, lngCompression);
objBitmap.Save(strFilename, objImageCodecInfo, objEncoderParameters);
}
public static void Save(this Bitmap image, Stream rstream, string mimeType = "image/png")
{
System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders().First(f => f.MimeType == mimeType);
System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
image.Save(rstream, codec, eParams);
rstream.Seek(0, SeekOrigin.Begin);
}
/// <summary>
/// 保存扫描的申请单
/// </summary>
/// <param name="bmp"></param>
/// <returns></returns>
private bool SaveScanImg(Bitmap bmp)
{
//创建一个扫描图像类
ScanData oneScan = new ScanData();
oneScan.申请ID = _str申请ID;
oneScan.扫描ID = SqlHelper.GetNumGuid().ToString();
oneScan.扫描信息.存储ID = 存储ID;
oneScan.扫描信息.扫描人 = 扫描人;
oneScan.扫描信息.扫描时间 = _scanModel.GetServerDate();
oneScan.扫描信息.文件名 = Guid.NewGuid().ToString("N");
oneScan.扫描信息.申请日期 = 申请日期;
oneScan.扫描信息.CopyBasePro(oneScan);
try
{
//保存临时文件
var eps = new System.Drawing.Imaging.EncoderParameters(1);
var ep = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 85L);
eps.Param[0] = ep;
var jpsEncoder = GetEncoder(ImageFormat.Jpeg);
FTPFileHelp ftpHelper = new FTPFileHelp();
initFTP(_dbQuery, 存储ID, out ftpHelper);
string vPath = ftpHelper.VPath + "//" + oneScan.扫描信息.申请日期.ToString("yyyyMMdd") + "//" + oneScan.申请ID + "//apply//";
string tmpFile = System.Windows.Forms.Application.StartupPath + @"\Temp" + vPath.Replace("//", "\\");
if (Directory.Exists(tmpFile) == false)
{
Directory.CreateDirectory(tmpFile);
}
tmpFile = tmpFile + oneScan.扫描信息.文件名 + ".jpg";
bmp.Save(tmpFile, jpsEncoder, eps);
//释放资源
ep.Dispose();
eps.Dispose();
//上传FTP
FileInfo fi = new FileInfo(tmpFile);
ftpHelper.MakeDirectory(vPath);
if (ftpHelper.FileUpLoad(vPath + oneScan.扫描信息.文件名 + ".jpg", fi) == true)
{
//存入数据库
_scanModel.SaveScanImage(oneScan);
}
else
{
return(false);
}
//ftpHelper.disConnect(); 没有关闭连接的方法吗？
}
catch (Exception ex)
{
MsgBox.ShowException(ex, this);
}
return(true);
}
public static void ResizeImage(string FileNameInput, string FileNameOutput, double ResizeHeight, double ResizeWidth, ImageFormat OutputFormat)
{
using (System.Drawing.Image photo = new Bitmap(FileNameInput))
{
double aspectRatio = (double)photo.Width / photo.Height;
double boxRatio = ResizeWidth / ResizeHeight;
double scaleFactor = 0;
if (photo.Width < ResizeWidth && photo.Height < ResizeHeight)
{
// keep the image the same size since it is already smaller than our max width/height
scaleFactor = 1.0;
}
else
{
if (boxRatio > aspectRatio)
{
scaleFactor = ResizeHeight / photo.Height;
}
else
{
scaleFactor = ResizeWidth / photo.Width;
}
}
int newWidth = (int)(photo.Width * scaleFactor);
int newHeight = (int)(photo.Height * scaleFactor);
using (Bitmap bmp = new Bitmap(newWidth, newHeight))
{
using (Graphics g = Graphics.FromImage(bmp))
{
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.SmoothingMode = SmoothingMode.HighQuality;
g.CompositingQuality = CompositingQuality.HighQuality;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.DrawImage(photo, 0, 0, newWidth, newHeight);
if (ImageFormat.Png.Equals(OutputFormat))
{
bmp.Save(FileNameOutput, OutputFormat);
}
else if (ImageFormat.Jpeg.Equals(OutputFormat))
{
ImageCodecInfo[] info = ImageCodecInfo.GetImageEncoders();
EncoderParameters encoderParameters;
using (encoderParameters = new System.Drawing.Imaging.EncoderParameters(1))
{
// use jpeg info[1] and set quality to 90
encoderParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 90L);
bmp.Save(FileNameOutput, info[1], encoderParameters);
}
}
}
}
}
}
public static void ResizeImg(int destWidth, int destHeight, string filePath, string saveFilePath)
{ //重新設定大小
System.Drawing.Image sourImage;
WebClient webC = new WebClient();
sourImage = System.Drawing.Image.FromStream(webC.OpenRead(filePath));
sourImage = RotateImage(sourImage);
webC.Dispose();
webC = null;
int width = 0, height = 0;
//按比例縮放
int sourWidth = sourImage.Width;
int sourHeight = sourImage.Height;
if (sourHeight > destHeight || sourWidth > destWidth)
{
if ((sourWidth * destHeight) > (sourHeight * destWidth))
{
width = destWidth;
height = (destWidth * sourHeight) / sourWidth;
}
else
{
height = destHeight;
width = (sourWidth * destHeight) / sourHeight;
}
}
else
{
width = sourWidth;
height = sourHeight;
}
Bitmap destBitmap = new Bitmap(width, height);
Graphics g = Graphics.FromImage(destBitmap);
g.Clear(Color.Transparent);
//設置畫布的描繪品質
// g.Clear(Color.Transparent);
g.Clear(Color.Black);
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.DrawImage(sourImage, new Rectangle(0, 0, width, height), new Rectangle(0, 0, sourWidth, sourHeight), GraphicsUnit.Pixel);
g.Dispose();
//設置壓縮品質
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
System.Drawing.Imaging.EncoderParameter encoderParam = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
sourImage.Dispose();
sourImage = null;
destBitmap.Save(saveFilePath, System.Drawing.Imaging.ImageFormat.Jpeg);
destBitmap.Dispose();
destBitmap = null;
}
public static void CompressImage(string fullFilePath, string destinationPath, long compression)
{
Bitmap bitmap = GetBitmap(fullFilePath);
if (bitmap == null)
{
return;
}
Bitmap newImage = new Bitmap(bitmap);
bool encoderFound = false;
System.Drawing.Imaging.ImageCodecInfo encoder = null;
var fileName = Path.GetFileName(fullFilePath);
if (fileName.ToLower().EndsWith(".jpg") || fileName.ToLower().EndsWith(".jpeg"))
{
encoderFound = true;
encoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
}
else if (fileName.ToLower().EndsWith(".bmp"))
{
encoderFound = true;
encoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Bmp);
}
else if (fileName.ToLower().EndsWith(".tiff"))
{
encoderFound = true;
encoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Tiff);
}
else if (fileName.ToLower().EndsWith(".gif"))
{
encoderFound = true;
encoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Gif);
}
else if (fileName.ToLower().EndsWith(".png"))
{
encoderFound = true;
encoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Png);
}
if (encoderFound)
{
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters myEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.EncoderParameter myEncoderParameter = new System.Drawing.Imaging.EncoderParameter(myEncoder, compression);
myEncoderParameters.Param[0] = myEncoderParameter;
newImage.Save(System.IO.Path.Combine(destinationPath), encoder, myEncoderParameters);
}
else
{
newImage.Save(System.IO.Path.Combine(destinationPath));
}
}
public static System.Drawing.Image ZoomImage(System.Drawing.Image bitmap, int destWidth, int destHeight)
{ //等比縮放
try
{
System.Drawing.Image sourImage = bitmap;
bitmap = RotateImage(bitmap);
int width = 0, height = 0;
//按比例縮放
int sourWidth = sourImage.Width;
int sourHeight = sourImage.Height;
if (sourHeight > destHeight || sourWidth > destWidth)
{
if ((sourWidth * destHeight) > (sourHeight * destWidth))
{
width = destWidth;
height = (destWidth * sourHeight) / sourWidth;
}
else
{
height = destHeight;
width = (sourWidth * destHeight) / sourHeight;
}
}
else
{
width = sourWidth;
height = sourHeight;
}
Bitmap destBitmap = new Bitmap(destWidth, destHeight);
Graphics g = Graphics.FromImage(destBitmap);
g.Clear(Color.Transparent);
//設置畫布的描繪品質
// webpic = Image_ChangeOpacity(webpic, 0f);
g.Clear(Color.Transparent);
// g.Clear(Color.Black);
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.DrawImage(sourImage, new Rectangle((destWidth - width) / 2, (destHeight - height) / 2, width, height), 0, 0, sourImage.Width, sourImage.Height, GraphicsUnit.Pixel);
//高度置中
//g.DrawImage(sourImage, new Rectangle((destWidth - width) / 2, (destHeight - height), width, height), 0, 0, sourImage.Width, sourImage.Height, GraphicsUnit.Pixel);
//齊底
g.Dispose();
//設置壓縮品質
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
System.Drawing.Imaging.EncoderParameter encoderParam = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
sourImage.Dispose();
return(destBitmap);
}
catch
{
return(bitmap);
}
}
//public string pdfToPic(string sourcePdf, string outputPath)
public static bool pdfToPic(string pdfInputPath, string outputPath, string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat)
{
// NOTE: This will only get the first image it finds per page.
PdfReader pdf = new PdfReader(pdfInputPath);
RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(pdfInputPath);
bool flag = true;
try
{
for (int pageNumber = startPageNum; pageNumber <= endPageNum; pageNumber++)
{
PdfDictionary pg = pdf.GetPageN(pageNumber);
// recursively search pages, forms and groups for images.
PdfObject obj = FindImageInPDFDictionary(pg);
if (obj != null)
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if ((bytes != null))
{
using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))
{
memStream.Position = 0;
System.Drawing.Image img = System.Drawing.Image.FromStream(memStream);
// must save the file while stream is open.
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
//path = Path.Combine(outputPath, String.Format(@"{0}.jpg", pageNumber));
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = GetImageEncoder("JPEG");
img.Save(outputPath + imageName + "." + imageFormat.ToString(), jpegEncoder, parms);
}
}
}
}
}
catch (Exception e)
{
flag = false;
}
finally
{
pdf.Close();
raf.Close();
}
return(flag);
}
public static void SaveJpeg(string path, Image image, long quality)
{
using (var encoderParameters = new System.Drawing.Imaging.EncoderParameters(1))
using (var encoderParameter = new System.Drawing.Imaging.EncoderParameter(Encoder.Quality, quality))
{
ImageCodecInfo codecInfo = ImageCodecInfo.GetImageDecoders().First(codec => codec.FormatID == ImageFormat.Jpeg.Guid);
encoderParameters.Param[0] = encoderParameter;
image.Save(path, codecInfo, encoderParameters);
}
}
private void SaveSinglePage(Bitmap bitMap)
{
ImageCodecInfo codecInfo = getCodecForstring("TIFF");
System.Drawing.Imaging.EncoderParameters iparams = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder iparam = System.Drawing.Imaging.Encoder.Compression;
System.Drawing.Imaging.EncoderParameter iparamPara = new System.Drawing.Imaging.EncoderParameter(iparam, (long)(System.Drawing.Imaging.EncoderValue.CompressionCCITT4));
iparams.Param[0] = iparamPara;
bitMap.Save(this.m_FileName, codecInfo, iparams);
}
public string Resize(Bitmap bmp, string strFileThumb, int P_Width)
{
string thumbnailFilePath = string.Empty;
string FileName = string.Empty;
try
{
float ratio = (float)bmp.Width / bmp.Height;
int imgHeight = 0;
//System.Drawing.Image img = Crop(bmp, P_Width, (int)(P_Width * ratio), AnchorPosition.Center);
// int iz = HttpContext.Current.Request.QueryString["iz"] != null ? Convert.ToInt32(HttpContext.Current.Request.QueryString["iz"]) : 0;
//switch (iz)
{
//case 0 :
// //3x4
// imgHeight = Convert.ToInt32( 0.75 * P_Width);
// break;
//case 1:
// //16x9
// imgHeight = Convert.ToInt32((float)9 / 16 * P_Width);
// break;
// default:
// normal:
imgHeight = Convert.ToInt32(P_Width / ratio);
// break;
}
imgHeight = Convert.ToInt32((float)9 / 16 * P_Width);
System.Drawing.Image img = Crop(bmp, P_Width + 1, imgHeight + 1, AnchorPosition.Center);
using (Bitmap thumb = new Bitmap(img))
{
//thumb.SetResolution(P_Width, P_Width);
using (Graphics g = Graphics.FromImage(thumb)) // Create Graphics object from original Image
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//Set Image codec of JPEG type, the index of JPEG codec is "1"
System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
//Set the parameters for defining the quality of the thumbnail... here it is set to 100%
System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 92L);
//Now draw the image on the instance of thumbnail Bitmap object
g.DrawImage(thumb, new Rectangle(0, 0, thumb.Width, thumb.Height));
thumb.Save(strFileThumb, codec, eParams);
}
}
}
catch (Exception ex)
{
throw ex;
}
return(FileName);
}
public static void ExtractImagesFromPDF(string sourcePdf, string outputPath)
{
// NOTE: This will only get the first image it finds per page.
PdfReader pdf = new PdfReader(sourcePdf);
//RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);
try
{
for (int pageNumber = 1; pageNumber <= pdf.NumberOfPages; pageNumber++)
{
PdfDictionary pg = pdf.GetPageN(pageNumber);
// recursively search pages, forms and groups for images.
PdfObject obj = FindImageInPDFDictionary(pg);
if (obj != null)
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if ((bytes != null))
{
using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))
{
memStream.Position = 0;
System.Drawing.Image img = ImageHelper.ResizeImage(System.Drawing.Image.FromStream(memStream), .33M);
// must save the file while stream is open.
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
string path = Path.Combine(outputPath, String.Format(@"{0}.jpg", pageNumber));
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
var encoders = ImageCodecInfo.GetImageEncoders();
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = encoders.FirstOrDefault(p => p.CodecName == "Built-in JPEG Codec");
img.Save(path, jpegEncoder, parms);
}
}
}
}
}
catch
{
throw;
}
finally
{
pdf.Close();
//raf.Close();
}
}
// Расшифровка QR-кода
private int QRCodeDecode(iTextSharp.text.Image QR)
{
PdfReader pdf = new PdfReader(InputFilePath);
PdfDictionary pg = pdf.GetPageN(1);
PdfDictionary res = (PdfDictionary)PdfReader.GetPdfObject(pg.Get(PdfName.RESOURCES));
PdfDictionary xobj = (PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));
if (xobj == null)
{
return(0);
}
foreach (PdfName name in xobj.Keys)
{
PdfObject obj = xobj.Get(name);
if (!obj.IsIndirect())
{
continue;
}
PdfDictionary tg = (PdfDictionary)PdfReader.GetPdfObject(obj);
PdfName type = (PdfName)PdfReader.GetPdfObject(tg.Get(PdfName.SUBTYPE));
if (!type.Equals(PdfName.IMAGE))
{
continue;
}
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if (bytes == null)
{
continue;
}
;
//memStream.Position = 0;
//System.Drawing.Image img = System.Drawing.Image.FromStream(memStream);
}
string path = Path.Combine(String.Format(@"result-{0}.jpg", 1));
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
var jpegEncoder = ImageCodecInfo.GetImageEncoders().ToList().Find(x => x.FormatID == ImageFormat.Jpeg.Guid);
//img.Save(path, jpegEncoder, parms);
return(0);
}
/// <summary>Saves image to a file</summary>
/// <param name="bmp">Bitmap to save</param>
/// <param name="FileName">File name</param>
/// <param name="Quality">Image quality, from 0 to 100. 97 should do fine</param>
public static void Save(Bitmap bmp, string FileName, int Quality)
{
Int64 quality = (Int64)Quality;
System.Drawing.Imaging.Encoder Encoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters myEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.EncoderParameter myEncoderParameter = new System.Drawing.Imaging.EncoderParameter(Encoder, quality);
myEncoderParameters.Param[0] = myEncoderParameter;
System.Drawing.Imaging.ImageCodecInfo jgpEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
bmp.Save(FileName, jgpEncoder, myEncoderParameters);
}
private Bitmap ZoomImage(Bitmap bitmap, int destHeight, int destWidth)
{
try
{
System.Drawing.Image sourImage = bitmap;
int width = 0, height = 0;
//按比例缩放
int sourWidth = sourImage.Width;
int sourHeight = sourImage.Height;
if (sourHeight > destHeight || sourWidth > destWidth)
{
if ((sourWidth * destHeight) > (sourHeight * destWidth))
{
width = destWidth;
height = (destWidth * sourHeight) / sourWidth;
}
else
{
height = destHeight;
width = (sourWidth * destHeight) / sourHeight;
}
}
else
{
width = sourWidth;
height = sourHeight;
}
Bitmap destBitmap = new Bitmap(destWidth, destHeight);
Graphics g = Graphics.FromImage(destBitmap);
g.Clear(Color.Transparent);
//设置画布的描绘质量
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.DrawImage(sourImage, new Rectangle((destWidth - width) / 2, (destHeight - height) / 2, width, height), 0, 0, sourImage.Width, sourImage.Height, GraphicsUnit.Pixel);
g.Dispose();
//设置压缩质量
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
System.Drawing.Imaging.EncoderParameter encoderParam = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
sourImage.Dispose();
bitmap.Dispose();
sourImage.Dispose();
return(destBitmap);
}
catch
{
return(bitmap);
}
}
private static string ConvertJpgToPng(int i, ImageRenderListener listener, string diretorio)
{
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = ImageCodecInfo.GetImageEncoders().Single(p => p.CodecName.Contains("PNG"));
System.Drawing.Image img = System.Drawing.Image.FromStream(new MemoryStream(listener.Images[i]));
string path = diretorio + "\\" + i + listener.ImageNames[i].ToLower().Replace(".jpg", ".png");
img.Save(path, jpegEncoder, parms);
return(path);
}
public static bool ImgResize(string Path, int Width, int Height, System.IO.Stream StreamFileupload, long ImgQuality)
{
try
{
//Thumbnain yaradaq, şəkil təmizliyi maksimum olacaq. ***************************
string thumbnailFilePath = string.Empty;
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(StreamFileupload))
{
if (Width == -1)
{
Width = (bmp.Width * (Height * 100) / bmp.Height) / 100;
}
else if (Height == -1)
{
Height = (bmp.Height * (Width * 100) / bmp.Width) / 100;
}
thumbnailFilePath = HttpContext.Current.Server.MapPath(Path); //Save File
System.Drawing.Size newSize = new System.Drawing.Size(Width, Height); // Thumbnail ölçüsü (width = xxx) (height = xxx)
using (System.Drawing.Bitmap thumb = new System.Drawing.Bitmap(bmp, newSize))
{
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(thumb)) // Original şəkili grafikə çeviririk: Təmizləmək üçün
{
//Təmizlik paramterləri:
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//Şəkil Codec yaradırıq. Sondakı 1 index dəyəridir.
System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
//Encoding paramter maksimum 100L gedir o zaman şəkilin həcmi çox olur.
System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ImgQuality);
//Şəkili yaradırıq və dəyərlərini üstəki kimi daxil edirik.
g.DrawImage(bmp, new System.Drawing.Rectangle(0, 0, thumb.Width, thumb.Height));
//Son olaraq Save edirik:
thumb.Save(thumbnailFilePath, codec, eParams);
return(true);
}
}
}
}
catch (Exception er)
{
DALCL.ErrorLog(string.Format("ImgResize catch error: {0}, path: {1}", er.Message, Path));
return(false);
}
}
/// <summary>
/// 添加图片水印
/// </summary>
/// <param name="oldpath">原图片绝对地址</param>
/// <param name="newpath">新图片放置的绝对地址</param>
public void addWaterMark(string oldpath, string newpath)
{
try
{
System.Drawing.Image image = System.Drawing.Image.FromFile(oldpath);
Bitmap b = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(b);
g.Clear(Color.White);
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.High;
g.DrawImage(image, 0, 0, image.Width, image.Height);
if (IsWaterMark)
{
switch (this.WMType)
{
case WaterMarkType.WM_IMAGE: //水印图片
this.addWatermarkImage(g, _waterMarkImgPath, WMLocation, image.Width, image.Height);
break;
case WaterMarkType.WM_TEXT: //水印文字
this.addWatermarkText(g, this.WaterMarkText, WMLocation, image.Width, image.Height);
break;
}
#region 降低图片质量
System.Drawing.Imaging.ImageCodecInfo encoder = GetEncoderInfo("image/jpeg");
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters(1);
encoderParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)80);
#endregion
b.Save(newpath, encoder, encoderParams);
encoderParams.Dispose();
b.Dispose();
image.Dispose();
}
}
catch
{
if (File.Exists(oldpath))
{
File.Delete(oldpath);
}
}
finally
{
if (File.Exists(oldpath))
{
File.Delete(oldpath);
}
}
}
static public byte[] toByte(this Mat mat)
{
ImageCodecInfo bmpEncoder = ImageCodecInfo.GetImageEncoders().Single(x => x.FormatDescription == "BMP");
System.Drawing.Imaging.Encoder encoder2 = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters(1);
EncoderParameter parameter = new EncoderParameter(encoder2, 50L);
parameters.Param[0] = parameter;
System.IO.Stream stream = new MemoryStream();
mat.Bitmap.Save(stream, bmpEncoder, parameters);
byte[] bytes = ((MemoryStream)stream).ToArray();
return bytes;
}
public static void Resize_Picture(ref Bitmap bmp, string Des, int FinalWidth, int FinalHeight, int ImageQuality)
{
System.Drawing.Bitmap NewBMP;
System.Drawing.Graphics graphicTemp;
int iWidth;
int iHeight;
if ((FinalHeight == 0) && (FinalWidth != 0))
{
iWidth = FinalWidth;
iHeight = (bmp.Size.Height * iWidth / bmp.Size.Width);
}
else if ((FinalHeight != 0) && (FinalWidth == 0))
{
iHeight = FinalHeight;
iWidth = (bmp.Size.Width * iHeight / bmp.Size.Height);
}
else
{
iWidth = FinalWidth;
iHeight = FinalHeight;
}
NewBMP = new System.Drawing.Bitmap(iWidth, iHeight);
graphicTemp = System.Drawing.Graphics.FromImage(NewBMP);
graphicTemp.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
graphicTemp.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphicTemp.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphicTemp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphicTemp.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphicTemp.DrawImage(bmp, 0, 0, iWidth, iHeight);
graphicTemp.Dispose();
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters();
System.Drawing.Imaging.EncoderParameter encoderParam = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ImageQuality);
encoderParams.Param[0] = encoderParam;
System.Drawing.Imaging.ImageCodecInfo[] arrayICI = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
//for (int fwd = 0; fwd <= arrayICI.Length - 1; fwd++)
//{
// if (arrayICI[fwd].FormatDescription.Equals("JPEG"))
// {
// NewBMP.Save(, arrayICI[fwd], encoderParams);
// }
//}
bmp = NewBMP;
//NewBMP.Dispose();
//bmp.Dispose();
}
private void SaveImage_Jpg(Stream stream, System.Drawing.Image image)
{
var myEncoder = System.Drawing.Imaging.Encoder.Quality;
var cInfo = GetEncoderInfo("image/jpeg");
using (var p1 = new System.Drawing.Imaging.EncoderParameters(1))
{
using (var p2 = new EncoderParameter(myEncoder, PluginSettings.JpgImageQuality))
{
p1.Param[0] = p2;
image.Save(stream, cInfo, p1);
}
}
}
