public void KucukBoyut(System.Drawing.Image yuklenenFoto, int resimBoyutu, string resimIsmi)
{
System.Drawing.Bitmap islenmisFoto = null;
System.Drawing.Graphics grafikNesnesi = null;
int hedeflenenGenislik = resimBoyutu;
int hedeflenenYukseklik = resimBoyutu;
int yeni_gen, yeni_yuk;
yeni_yuk = (int)Math.Round(((float)yuklenenFoto.Height * (float)resimBoyutu) / (float)yuklenenFoto.Width);
yeni_gen = hedeflenenGenislik;
hedeflenenYukseklik = yeni_yuk;
yeni_gen = yeni_gen > hedeflenenGenislik ? hedeflenenGenislik : yeni_gen;
yeni_yuk = yeni_yuk > hedeflenenYukseklik ? hedeflenenYukseklik : yeni_yuk;
islenmisFoto = new System.Drawing.Bitmap(hedeflenenGenislik, hedeflenenYukseklik);
grafikNesnesi = System.Drawing.Graphics.FromImage(islenmisFoto);
grafikNesnesi.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.White), new System.Drawing.Rectangle(0, 0, hedeflenenGenislik, hedeflenenYukseklik));
int x = (hedeflenenGenislik - yeni_gen) / 2;
int y = (hedeflenenYukseklik - yeni_yuk) / 2;
grafikNesnesi.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
grafikNesnesi.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
grafikNesnesi.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);
grafikNesnesi.DrawImage(yuklenenFoto, x, y, yeni_gen, yeni_yuk);
islenmisFoto.Save(Server.MapPath("/Content/" + resimIsmi), codec, eParams);
}
public static byte[] ResizeImageToByte(string fileName, int width, int height)
{
using (Bitmap bmp = (Bitmap) new Bitmap(fileName).Clone())
{
Size newSize = new Size(width, height);
using (Bitmap newBmp = new Bitmap((System.Drawing.Image)bmp, newSize))
{
using (Graphics g = Graphics.FromImage(newBmp)) // 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, 75L);
//Now draw the image on the instance of thumbnail Bitmap object
g.DrawImage(bmp, new Rectangle(0, 0, newBmp.Width, newBmp.Height));
//newBmp.Save(newFileName, codec, eParams);
//newBmp.Save(newFileName, Image.FromFile(fileName).RawFormat);
MemoryStream ms = new MemoryStream();
newBmp.Save(ms, bmp.RawFormat);
return(ms.GetBuffer());
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ThumbnailCreator"/> class.
/// </summary>
/// <param name="tnSettings">The <see cref="ThumbnailSettings"/> to use.</param>
/// <param name="worker">The <see cref="System.ComponentModel.BackgroundWorker"/>worker to use.
/// </param>
public ThumbnailCreator(ThumbnailSettings tnSettings, System.ComponentModel.BackgroundWorker worker)
{
this._tnSettings = tnSettings;
this._worker = worker;
#if false
_imageCodec = GetEncoder (System.Drawing.Imaging.ImageFormat.Png);
_qualityParameter = new System.Drawing.Imaging.EncoderParameter (
System.Drawing.Imaging.Encoder.Quality, 75L);
_qualityParameters = new System.Drawing.Imaging.EncoderParameters (1);
_qualityParameters.Param[0] = _qualityParameter;
#else
_imageCodec = GetEncoder (System.Drawing.Imaging.ImageFormat.Jpeg);
_qualityParameter = new System.Drawing.Imaging.EncoderParameter (
System.Drawing.Imaging.Encoder.Quality, 75L);
_qualityParameters = new System.Drawing.Imaging.EncoderParameters (1);
_qualityParameters.Param[0] = _qualityParameter;
#endif
#if false
using (System.Drawing.Bitmap bitmap1 = new System.Drawing.Bitmap (1, 1))
{
System.Drawing.Imaging.EncoderParameters paramList =
bitmap1.GetEncoderParameterList (_imageCodec.Clsid);
System.Drawing.Imaging.EncoderParameter[] encParams = paramList.Param;
foreach (System.Drawing.Imaging.EncoderParameter p in encParams)
{
THelper.Information ("Type {0}, GUID {1}", p.ValueType, p.Encoder.Guid);
}
paramList.Dispose ();
}
#endif
}
public void SaveImage(string fileName, long size, int no)
{
//画像ファイルを読み込む
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(fileName);
//イメージエンコーダに関する情報を取得する
System.Drawing.Imaging.ImageCodecInfo ici = GetEncoderInfo("image/jpeg");
try
{
//EncoderParameterオブジェクトを1つ格納できる
//EncoderParametersクラスの新しいインスタンスを初期化
//ここでは品質のみ指定するため1つだけ用意する
System.Drawing.Imaging.EncoderParameters eps = getOptiumQuarity(size, bmp, ici);
//ファイル名を取得
string saveName = getSaveFileName(fileName, size, no);
//保存する
bmp.Save(saveName, ici, eps);
bmp.Dispose();
eps.Dispose();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
public static void Thumbize(string pPage, string pThumb, Document document, Page page)
{
System.IO.MemoryStream cryptoStream = new System.IO.MemoryStream(Utility.Security.AES.DecryptStream(page.Token, System.IO.File.ReadAllBytes(System.IO.Path.Combine(pPage, page.Filename))).ToArray());
using (var srcImage = System.Drawing.Image.FromStream(cryptoStream))
{
var newWidth = 300;
var newHeight = 200;
using (var newImage = new Bitmap(newWidth, newHeight))
using (var graphics = Graphics.FromImage(newImage))
{
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphics.DrawImage(srcImage, new System.Drawing.Rectangle(0, 0, newWidth, newHeight));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
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 = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders().FirstOrDefault(e => e.FormatDescription == "JPEG");
newImage.Save(ms, jpegEncoder, parms);
System.IO.File.WriteAllBytes(System.IO.Path.Combine(pThumb, string.Format("{0}.jpg", document.Id.ToString())), SoftFluent.Samples.GED.Utility.Security.AES.EncryptStream(document.Token, ms.ToArray()).ToArray());
ms.Close();
}
}
}
public void SaveBmpWithImageCodecInfo(System.Drawing.Image img, string photoPath)
{
System.Drawing.Imaging.ImageCodecInfo encoderInfo = PictureWaterMark.GetEncoderInfo("image/jpeg");
System.Drawing.Imaging.Encoder quality = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.EncoderParameter encoderParameter = new System.Drawing.Imaging.EncoderParameter(quality, 100L);
encoderParameters.Param[0] = encoderParameter;
if (img == null)
{
return;
}
System.Drawing.Bitmap bitmap = null;
try
{
bitmap = new System.Drawing.Bitmap(img);
bitmap.Save(photoPath, encoderInfo, encoderParameters);
}
catch (Exception ex)
{
Log.WriteLog("SaveBmpWithImageCodecInfo出错", ex);
}
finally
{
bitmap.Dispose();
}
}
public static string GetJPEGBase64StringFromBitmapImage(BitmapImage bmpImage, long jpegEncoderQuality, System.Drawing.RotateFlipType rotateFlip)
{
System.Drawing.Bitmap bmp = null;
MemoryStream ms = new MemoryStream();
try
{
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
encoderParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(myEncoder, jpegEncoderQuality);
System.Drawing.Imaging.ImageCodecInfo jgpEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
bmp = UIHelper.BitmapImage2Bitmap(bmpImage);
bmp.RotateFlip(rotateFlip);
bmp.Save(ms, jgpEncoder, encoderParameters);
return(Convert.ToBase64String(ms.ToArray()));
}
finally
{
DeleteObject(bmp.GetHbitmap());
bmp.Dispose();
bmp = null;
}
}
protected static void ImageResize(System.Drawing.Image orjinalFoto, int boyut, string dosyaAdi, string filePath)
{
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;
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(filePath + dosyaAdi), codec, eParams);
}
private void buttonSavePicture_Click(object sender, EventArgs e)
{
if (pictureBoxHierarchy.Image != null)
{
SaveFileDialog savedialog = new SaveFileDialog();
savedialog.Title = "Сохранить картинку как...";
savedialog.OverwritePrompt = true;
savedialog.CheckPathExists = true;
savedialog.Filter = "Image Files(*.JPG)|*.JPG";
savedialog.ShowHelp = true;
System.Drawing.Imaging.ImageCodecInfo jpgEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
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, 100L);
myEncoderParameters.Param[0] = myEncoderParameter;
if (savedialog.ShowDialog() == DialogResult.OK)
{
try
{
pictureBoxHierarchy.Image.Save(savedialog.FileName, jpgEncoder, myEncoderParameters);
}
catch
{
MessageBox.Show("Невозможно сохранить изображение", "Ошибка",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
public virtual void saveJPEG(System.String filename)
{
try
{
// Set the quality to 100 (must be a long)
System.Drawing.Imaging.Encoder qualityEncoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameter ratio = new System.Drawing.Imaging.EncoderParameter(qualityEncoder, 100L);
// Add the quality parameter to the list
System.Drawing.Imaging.EncoderParameters codecParams = new System.Drawing.Imaging.EncoderParameters(1);
codecParams.Param[0] = ratio;
// Get Codec Info using MIME type
System.Drawing.Imaging.ImageCodecInfo JpegCodecInfo = GetEncoderInfo("image/jpeg");
//
System.Console.Out.WriteLine("Saving '" + filename + "'.");
offImg.Save(filename, JpegCodecInfo, codecParams);
System.Console.Out.WriteLine("JPEG image saved.");
}
catch (System.Exception e)
{
System.Console.Out.WriteLine(e);
}
}
private void FeedImageContent(HttpListenerContext context)
{
context.Response.ContentType = "image/png";
// Find the appropriate codec for saving the episode image as a png
System.Drawing.Imaging.ImageCodecInfo pngCodec = null;
foreach (System.Drawing.Imaging.ImageCodecInfo codec in System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders())
{
if (codec.MimeType == context.Response.ContentType)
{
pngCodec = codec;
break;
}
}
try
{
Properties.Resources.icon_main_img256.Save(context.Response.OutputStream, pngCodec, null);
}
catch (HttpListenerException)
{
// Don't worry about dropped connections etc.
}
}
public static byte[] ReduceWeightImage(System.Drawing.Image image, long minByteWeight, long maxByteWeight)
{
byte[] source = GetBytes(image);
if (source.Length < maxByteWeight)
{
return(source);
}
if (minByteWeight > 0 && maxByteWeight > 0)
{
if (minByteWeight > maxByteWeight)
{
(minByteWeight, maxByteWeight) = (maxByteWeight, minByteWeight);
}
if (maxByteWeight - minByteWeight < 50)
{
maxByteWeight = minByteWeight + 50;
}
System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageDecoders();
string mimeType = GetMimeType(image);
System.Drawing.Imaging.ImageCodecInfo imageCodecInfo = codecs[1];
System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters encoderParameters =
new System.Drawing.Imaging.EncoderParameters(1);
return(ReduceWeightImageProcess(source, source, minByteWeight, maxByteWeight, imageCodecInfo,
encoder, encoderParameters, source.LongLength * 85L / 1166927L));
}
return(source);
}
/// <summary>
/// JPGファイルに変換
/// </summary>
/// <param name="pngPath">元のPNGファイルフルパス</param>
/// <param name="quality">品質(0-100)</param>
/// <returns></returns>
static string ConvertToJpeg(string pngPath, int quality)
{
string jpgPath = null;
using (Bitmap bmp = new Bitmap(pngPath))
{
try
{
string ext = System.IO.Path.GetExtension(pngPath);
jpgPath = pngPath.Replace(ext, "") + ".jpg";
System.Drawing.Imaging.EncoderParameters eps = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.EncoderParameter ep = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)quality);
eps.Param[0] = ep;
System.Drawing.Imaging.ImageCodecInfo ici = GetEncoderInfo("image/jpeg");
bmp.Save(jpgPath, ici, eps);
}
catch (Exception ex)
{
throw ex;
}
bmp.Dispose();
}
return(jpgPath);
}
static void Main(string[] args)
{
foreach (string file in args)
{
try
{
System.Console.Write("Reading file: {0} ... ", file);
using (System.Drawing.Image image = System.Drawing.Image.FromFile(file))
{
System.Console.WriteLine("Done");
System.IO.FileInfo info = new System.IO.FileInfo(file);
string output = file.Replace(info.Extension, ".jpg");
System.Console.Write("Writing file: {0} ... ", output);
// Create parameters to specify quality.
System.Drawing.Imaging.ImageCodecInfo codec = Program.getCodecInfo("image/jpeg");
System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters(1);
parameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(encoder, 100L);
// Write the file.
image.Save(output, codec, parameters);
System.Console.WriteLine("Done");
}
}
catch (System.Exception e)
{
System.Console.WriteLine("Error processing file '", file, ", ", e.Message);
}
}
}
private void EpisodeImageContent(HttpListenerContext context)
{
Regex epidPattern = new Regex(@"^\?epid=([0-9]+)$");
Match match = epidPattern.Match(context.Request.Url.Query);
int epid;
if (!int.TryParse(match.Groups[1].Value, out epid))
{
// Request doesn't contain a valid episode id
this.ErrorPage404(context);
return;
}
Model.Episode episode;
try
{
episode = new Model.Episode(epid);
}
catch (DataNotFoundException)
{
// Episode ID does not exist
this.ErrorPage404(context);
return;
}
CompressedImage image = episode.Image;
if (image == null)
{
// Specified episode does not have an image
this.ErrorPage404(context);
return;
}
context.Response.ContentType = "image/png";
// Find the appropriate codec for saving the image as a png
System.Drawing.Imaging.ImageCodecInfo pngCodec = null;
foreach (System.Drawing.Imaging.ImageCodecInfo codec in System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders())
{
if (codec.MimeType == context.Response.ContentType)
{
pngCodec = codec;
break;
}
}
try
{
image.Image.Save(context.Response.OutputStream, pngCodec, null);
}
catch (HttpListenerException)
{
// Don't worry about dropped connections etc.
}
}
public static void ExtractImagesFromPDF(string password, string key, string docPath, string pagePath, PageCollection pages)
{
Page page = null;
// NOTE: This will only get the first image it finds per page.
PdfReader pdf = new PdfReader(Utility.Security.AES.DecryptFile(key, docPath));
//RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(p);
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 = System.Drawing.Image.FromStream(memStream);
// must save the file while stream is open.
page = new Page();
page.Order = pages.Count;
page.Save();
page.Token = Utility.Security.AES.GetToken(page.Id, password);
//string path = System.IO.Path.Combine(page.Filename, 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 = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders().FirstOrDefault(e => e.FormatDescription == "JPEG");
System.IO.MemoryStream ms = new System.IO.MemoryStream();
img.Save(ms, jpegEncoder, parms);
System.IO.File.WriteAllBytes(System.IO.Path.Combine(pagePath, page.Filename), SoftFluent.Samples.GED.Utility.Security.AES.EncryptStream(page.Token, ms.ToArray()).ToArray());
ms.Close();
pages.Add(page);
}
}
}
}
}
catch
{
throw;
}
finally
{
pdf.Close();
//raf.Close();
}
}
private void ChapterImageContent(HttpListenerContext context)
{
Regex paramsPattern = new Regex(@"^\?epid=([0-9]+)&start=([0-9]+)$");
Match match = paramsPattern.Match(context.Request.Url.Query);
int epid, start;
if (!int.TryParse(match.Groups[1].Value, out epid))
{
// Request doesn't contain a valid episode id
this.ErrorPage404(context);
return;
}
if (!int.TryParse(match.Groups[2].Value, out start))
{
// Request doesn't contain a valid start time
this.ErrorPage404(context);
return;
}
var download = new Model.Download(epid);
var chapter = new Model.Chapter(download, start);
CompressedImage image = chapter.Image;
if (image == null)
{
// Specified chapter does not have an image
this.ErrorPage404(context);
return;
}
context.Response.ContentType = "image/png";
// Find the appropriate codec for saving the image as a png
System.Drawing.Imaging.ImageCodecInfo pngCodec = null;
foreach (System.Drawing.Imaging.ImageCodecInfo codec in System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders())
{
if (codec.MimeType == context.Response.ContentType)
{
pngCodec = codec;
break;
}
}
try
{
image.Image.Save(context.Response.OutputStream, pngCodec, null);
}
catch (HttpListenerException)
{
// Don't worry about dropped connections etc.
}
}
public static void SaveImage(System.Drawing.Image Image, string Destination)
{
System.Drawing.Imaging.ImageCodecInfo jgpEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
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, (long)Settings.ImageQuality);
myEncoderParameters.Param[0] = myEncoderParameter;
Image.Save(Destination, jgpEncoder, myEncoderParameters);
}
private static System.Drawing.Image SaveImages(
System.Drawing.Imaging.ImageCodecInfo tiffCodec
, System.IO.MemoryStream outputStream
, System.Drawing.Image tiffImage, System.Drawing.Image firstImage)
{
using (System.Drawing.Imaging.EncoderParameters encParameters =
new System.Drawing.Imaging.EncoderParameters(3))
{
if (firstImage == null)
{
encParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(
System.Drawing.Imaging.Encoder.SaveFlag
, (long)System.Drawing.Imaging.EncoderValue.MultiFrame // 18L
);
}
else
{
encParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(
System.Drawing.Imaging.Encoder.SaveFlag
, (long)System.Drawing.Imaging.EncoderValue.FrameDimensionPage // 23L
);
}
encParameters.Param[1] = new System.Drawing.Imaging.EncoderParameter(
System.Drawing.Imaging.Encoder.ColorDepth, 24L
);
encParameters.Param[2] = new System.Drawing.Imaging.EncoderParameter(
System.Drawing.Imaging.Encoder.Compression
, (long)System.Drawing.Imaging.EncoderValue.CompressionLZW
);
if (firstImage == null)
{
firstImage = tiffImage;
((System.Drawing.Bitmap)tiffImage).SetResolution(96, 96);
firstImage.Save(outputStream, tiffCodec, encParameters);
}
else
{
((System.Drawing.Bitmap)tiffImage).SetResolution(96, 96);
firstImage.SaveAdd(tiffImage, encParameters);
}
if (encParameters.Param[0] != null)
{
encParameters.Param[0].Dispose();
}
if (encParameters.Param[1] != null)
{
encParameters.Param[1].Dispose();
}
if (encParameters.Param[2] != null)
{
encParameters.Param[2].Dispose();
}
} // End Using encParameters
return(firstImage);
}
public static byte[] MakeClearlyImage(string originalImagePath, long p = 30)
{
MemoryStream stream = new MemoryStream();
//获取原始图片
System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath);
//新建一个bmp图片,并设置缩略图大小.
System.Drawing.Image bitmap = new System.Drawing.Bitmap(originalImage.Width, originalImage.Height);
//新建一个画板
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
//设置高质量插值法
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
//设置高质量,低速度呈现平滑程度
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//清空画布并设置背景色
g.Clear(System.Drawing.Color.FromArgb(100, 255, 255, 255));
//在指定位置并且按指定大小绘制原图片的指定部分
//第一个System.Drawing.Rectangle是原图片的画布坐标和宽高,第二个是原图片写在画布上的坐标和宽高,最后一个参数是指定数值单位为像素
g.DrawImage(originalImage, new System.Drawing.Point()
{
X = 0, Y = 0
});
System.Drawing.Imaging.ImageCodecInfo encoder = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders().FirstOrDefault(a => a.MimeType == "image/jpeg");
try
{
if (encoder != null)
{
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters(1);
//设置 jpeg 质量为 60
encoderParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, p);
bitmap.Save(stream, encoder, encoderParams);
encoderParams.Dispose();
return(stream.ToArray());
}
}
catch (System.Exception e)
{
new TxtLogHelper().Error(e);
throw e;
}
finally
{
originalImage.Dispose();
bitmap.Dispose();
g.Dispose();
}
return(null);
}
public void GetEncoderByImageFormat()
{
System.Drawing.Imaging.ImageCodecInfo codec = ImageHelper.GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
if (codec != null)
{
Console.WriteLine(codec.CodecName);
Console.WriteLine(codec.MimeType);
Console.WriteLine(codec.FormatID);
Console.WriteLine(codec.Version);
}
}
/// <summary>
/// 在图片上生成图片水印
/// </summary>
/// <param name="Path">原服务器图片路径</param>
/// <param name="Path_syp">生成的带图片水印的图片路径</param>
/// <param name="Path_sypf">水印图片路径</param>
/// <param name="xPer">x轴位置百分比 （用小数表示）0~1</param>
/// <param name="yPer">y轴位置百分比 （用小数表示）0~1</param>
/// <param name="transparence">透明度（用小数表示）0~1</param>
public static void AddWaterPic(string Path, string Path_syp, string Path_sypf, double xPer, double yPer, float transparence)
{
if (!File.Exists(Path))
{
throw new FileNotFoundException("指定原图片路径的文件不存在");
}
else
{
System.Drawing.Image image = System.Drawing.Image.FromFile(Path);
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(image.Width, image.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
if (!File.Exists(Path_sypf))
{
throw new FileNotFoundException("指定水印图片路径的文件不存在");
}
System.Drawing.Image copyImage = System.Drawing.Image.FromFile(Path_sypf);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.Clear(System.Drawing.Color.Transparent);
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ((long)80));
string extension = System.IO.Path.GetExtension(Path).ToLower();
System.Drawing.Imaging.ImageCodecInfo imgCodeInfo = GetImageCodeInfo(SetImgType()[extension].ToString());
g.DrawImage(image, 0, 0, image.Width, image.Height);
float[][] ptsArray =
{
new float[] { 1, 0, 0, 0, 0 },
new float[] { 0, 1, 0, 0, 0 },
new float[] { 0, 0, 1, 0, 0 },
new float[] { 0, 0, 0, transparence, 0 },
new float[] { 0, 0, 0, 0, 1 }
};
System.Drawing.Imaging.ColorMatrix colorMatrix = new System.Drawing.Imaging.ColorMatrix(ptsArray);
System.Drawing.Imaging.ImageAttributes imageAttribute = new System.Drawing.Imaging.ImageAttributes();
imageAttribute.SetColorMatrix(colorMatrix);
int x = (int)Convert.ToInt32(image.Width * xPer);
int y = (int)Convert.ToInt32(image.Height * yPer);
g.DrawImage(copyImage, new System.Drawing.Rectangle(x, y, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, copyImage.Height, System.Drawing.GraphicsUnit.Pixel, imageAttribute);
g.Dispose();
image.Dispose();
bitmap.Save(Path_syp, imgCodeInfo, parms);
copyImage.Dispose();
bitmap.Dispose();
}
}
/// <summary>
/// GetImageCodecInfo (e.g. from "image/jpg")
/// </summary>
/// <param name="mimeType"></param>
/// <returns></returns>
private static System.Drawing.Imaging.ImageCodecInfo GetImageCodecInfo(string mimeType)
{
System.Drawing.Imaging.ImageCodecInfo codecInfo = null;
var encoders = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
for (int i = 0; i < encoders.Length; ++i)
{
if (encoders[i].MimeType == mimeType)
{
codecInfo = encoders[i];
}
}
return(codecInfo);
}
string Crop(string filename)
{
try
{
double rubberBandLeft = Canvas.GetLeft(TheCropper);
double rubberBandTop = Canvas.GetTop(TheCropper);
//create a new .NET 2.0 bitmap (which allowing saving) based on the bound bitmap url
using (System.Drawing.Bitmap source = new System.Drawing.Bitmap(filename))
{
//create a new .NET 2.0 bitmap (which allowing saving) to store cropped image in, should be
//same size as rubberBand element which is the size of the area of the original image we want to keep
using (System.Drawing.Bitmap target = new System.Drawing.Bitmap((int)TheCropper.ActualWidth, (int)TheCropper.ActualHeight))
{
//create a new destination rectange
System.Drawing.RectangleF recDest = new System.Drawing.RectangleF(0.0f, 0.0f, (float)target.Width, (float)target.Height);
//different resolution fix prior to cropping image
float hd = 1.0f; // / (target.HorizontalResolution / source.h);
float vd = 1.0f; // / (target.VerticalResolution / source.VerticalResolution);
float hScale = 1.0f; // (float)zoomFactor;
float vScale = 1.0f; // (float)zoomFactor;
System.Drawing.RectangleF recSrc = new System.Drawing.RectangleF((hd * (float)rubberBandLeft) * hScale,
(vd * (float)rubberBandTop) * vScale,
(hd * (float)TheCropper.Width) * hScale,
(vd * (float)TheCropper.Height) * vScale);
using (System.Drawing.Graphics gfx = System.Drawing.Graphics.FromImage(target))
{
gfx.DrawImage(source, recDest, recSrc, System.Drawing.GraphicsUnit.Pixel);
}
filename = Helpers.GetUniqueFilename(".jpg");
FileManager.GarbageFiles.Add(filename);
System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
//Set the parameters for defining the quality of the thumbnail...
System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 99L);
target.Save(filename, codec, eParams);
return(filename);
}
}
}
catch
{
return(filename);
}
}
private System.Drawing.Imaging.ImageCodecInfo GetEncoderInfo(string mimeType)
{
//根据 mime 类型，返回编码器
System.Drawing.Imaging.ImageCodecInfo result = null;
System.Drawing.Imaging.ImageCodecInfo[] encoders = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
for (int i = 0; i < encoders.Length; i++)
{
if (encoders[i].MimeType == mimeType)
{
result = encoders[i];
break;
}
}
return(result);
}
} // End Function GetEncoder
static byte[] CompressImage(System.Drawing.Image image, int jpegQuality)
{
byte[] outputBytes = null;
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
encoderParameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, jpegQuality);
using (System.IO.MemoryStream outputStream = new System.IO.MemoryStream())
{
image.Save(outputStream, jpegEncoder, encoderParameters);
outputBytes = outputStream.ToArray();
}
return(outputBytes);
}
public static void CreateThumbnailOld(string fileName)
{
string thumbnailFilePath = fileName + ".thumb.jpg";
//Size newSize = new Size(120, 90); // Thumbnail size (width = 120) (height = 90)
using (Bitmap bmp = new Bitmap(fileName))
{
//bepaal factor
double factor = 1;
if (bmp.Size.Width > 120)
{
factor = 120 / (double)bmp.Size.Width;
}
else if (bmp.Size.Height > 90)
{
factor = 90 / (double)bmp.Size.Height;
}
//maak size van
int newWidth = (int)((double)bmp.Size.Width * factor);
int newHeight = (int)((double)bmp.Size.Height * factor);
Size newSize = new Size(newWidth, newHeight);
using (Bitmap thumb = new Bitmap((System.Drawing.Image)bmp, newSize))
{
using (Graphics g = Graphics.FromImage(thumb)) // Create Graphics object from original Image
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Default;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.Default;
//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, 100L);
//Now draw the image on the instance of thumbnail Bitmap object
g.DrawImage(bmp, new Rectangle(0, 0, thumb.Width, thumb.Height));
thumb.Save(thumbnailFilePath, codec, eParams);
}
}
}
}
public void saveScreenImage(string file)
{
// Grab screen pixels.
System.Drawing.Rectangle bounds = System.Windows.Forms.Screen.PrimaryScreen.Bounds;
System.Drawing.Bitmap bitmap = this._getDesktopImage(bounds);
// Create parameters to specify quality.
System.Drawing.Imaging.ImageCodecInfo codec = Program.getCodecInfo("image/jpeg");
System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.Quality;
System.Drawing.Imaging.EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters(1);
parameters.Param[0] = new System.Drawing.Imaging.EncoderParameter(encoder, 100L);
// Make the output file name.
string output = ((null == file) ? System.String.Format("{0}_screen_shot.jpg", System.DateTime.Now.ToFileTime()) : file);
// Write the file.
bitmap.Save(output, codec, parameters);
}
private void UpdateCodec()
{
encoder = null;
CodecLabel.Content = "No codec found";
StartButton.IsEnabled = false;
System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
foreach (var e in codecs)
{
if (e.FormatID == format.Guid)
{
encoder = e;
CodecLabel.Content = "Using Codec " + e.CodecName;
StartButton.IsEnabled = true;
encoderParams = new System.Drawing.Imaging.EncoderParameters(1);
encoderParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
break;
}
}
}
private System.Drawing.Imaging.ImageCodecInfo GetEncoderInfo()
{
int j;
if (jpegCodec == null)
{
String mimeType = "image/png";
System.Drawing.Imaging.ImageCodecInfo[] encoders;
encoders = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
for (j = 0; j < encoders.Length; ++j)
{
if (encoders[j].MimeType == mimeType)
{
jpegCodec = encoders[j];
break;
}
}
}
return(jpegCodec);
}
public static void SaveThumbnail(Bitmap bit, Size size, string targePath)
{
System.Drawing.Imaging.EncoderParameters encoderParams = new System.Drawing.Imaging.EncoderParameters();
long[] quality = new long[1];
quality[0] = 75;
System.Drawing.Imaging.EncoderParameter encoderParam = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
System.Drawing.Imaging.ImageCodecInfo[] arrayICI = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
System.Drawing.Imaging.ImageCodecInfo jpegICI = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICI = arrayICI[x];
break;
}
}
var image = Thumbnail(bit, size);
image.Save(targePath, jpegICI, encoderParams);
}
private void InitialiseEncoder()
{
imageCodec = GetEncoder(System.Drawing.Imaging.ImageFormat.Jpeg);
encoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
EncoderQuality = 25;
}
