private void Resize(string inputPath)
{
const int size = 150;
const int quality = 75;
using (var rawData = Image.FromFile(inputPath))
{
//using (var image = new Bitmap(System.Drawing.Image.FromFile(inputPath)))
using (var image = new Bitmap(rawData))
{
int width, height;
if (image.Width > image.Height)
{
width = size;
height = Convert.ToInt32(image.Height * size / (double)image.Width);
}
else
{
width = Convert.ToInt32(image.Width * size / (double)image.Height);
height = size;
}
var resized = new Bitmap(width, height);
using (var graphics = Graphics.FromImage(resized))
{
graphics.CompositingQuality = CompositingQuality.HighSpeed;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.DrawImage(image, 0, 0, width, height);
var filename = inputPath.
Split(new string[] { "/", "\\" }, StringSplitOptions.RemoveEmptyEntries)
.ToList()
.Last()
.Split(".")
.First();
using (var output = File.Open(@$ "{picturePath}{filename}_small.jpg"
, FileMode.Create))
{
var qualityParamId = Encoder.Quality;
var encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(qualityParamId, quality);
var codec = ImageCodecInfo.GetImageDecoders()
.FirstOrDefault(codec => codec.FormatID == ImageFormat.Jpeg.Guid);
resized.Save(output, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
}
}
}
/// <summary>
/// Converts to MimeType.
/// Also can be used to validate RawFormat value
/// </summary>
/// <param name="item">Image to evaluate</param>
/// <returns>String mime type</returns>
public static string ToMimeType(this Image item)
{
var returnValue = MimeTypes.ImageUnknown;
var itemGuid = item.RawFormat.Guid;
foreach (ImageCodecInfo codec in ImageCodecInfo.GetImageDecoders())
{
if (codec.FormatID == itemGuid)
{
return(codec.MimeType);
}
}
return(returnValue);
}
/// <summary>
/// Returns the MIME type of the specified image.
/// </summary>
/// <param name="image">The image.</param>
/// <returns>A mime type string.</returns>
public static string GetMimeType(Image image)
{
Check.Require <ArgumentNullException>(image != null, "image");
foreach (ImageCodecInfo codec in ImageCodecInfo.GetImageDecoders())
{
if (codec.FormatID == image.RawFormat.Guid)
{
return(codec.MimeType);
}
}
return("image/unknown");
}
private async Task <string> ConvertToDataUri(string url)
{
MemoryStream ms = new MemoryStream();
using (var image = Image.FromStream(await httpClient.GetStreamAsync(url)))
{
var encoder = ImageCodecInfo.GetImageDecoders().Where(x => x.FormatID == ImageFormat.Jpeg.Guid).FirstOrDefault();
var encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, useDataUriQuality);
image.Save(ms, encoder, encoderParameters);
}
return($"data:image/jpeg;base64,{Convert.ToBase64String(ms.ToArray())}");
}
//mwtoda służąca do kompresji plików przy zapisie do JPEG
//jest to metoda zaproponowana przez Microsoft
private ImageCodecInfo GetEncoder(ImageFormat format)
{
//dekodujemy kodeki z pomocą pętli foreach, wybieramy po kolei elementy z tablicy codecs
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
//sprawdzenie poprawności dekodowania i formatu
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
private static ImageCodecInfo GetEncoder(string formatTo)
{
ImageFormat format;
switch (formatTo.ToUpper())
{
case ".PNG":
case "PNG":
format = ImageFormat.Png;
break;
case ".TIFF":
case "TIFF":
format = ImageFormat.Tiff;
break;
case ".BMP":
case "BMP":
format = ImageFormat.Bmp;
break;
case ".JPEG":
case "JPEG":
case ".JPG":
case "JPG":
format = ImageFormat.Jpeg;
break;
case ".ICON":
case "ICON":
format = ImageFormat.Icon;
break;
default:
format = ImageFormat.Jpeg; // default
break;
}
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
private static ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] imageDecoders = ImageCodecInfo.GetImageDecoders();
ImageCodecInfo[] array = imageDecoders;
for (int i = 0; i < array.Length; i++)
{
ImageCodecInfo imageCodecInfo = array[i];
if (imageCodecInfo.FormatID == format.Guid)
{
return(imageCodecInfo);
}
}
return(null);
}
public static ImageCodecInfo EnkoderBul(ImageFormat ResimFormati)
{
ImageCodecInfo[] ICI = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo i in ICI)
{
if (i.FormatID == ResimFormati.Guid)
{
return(i);
}
}
return(null);
}
public static ImageCodecInfo GetEncoder(this ImageFormat format)
{
var codecs = ImageCodecInfo.GetImageDecoders();
foreach (var codec in codecs)
{
if (codec.FormatID == GetNetImageFormat(format).Guid)
{
return(codec);
}
}
return(null);
}
/// <summary>
/// システムがサポートする画像フォーマットの拡張子の配列を取得します。
/// </summary>
/// <returns>読み込める拡張子のString配列</returns>
public IEnumerable <string> GetSystemAcceptExt()
{
ImageCodecInfo[] decoders = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo ici in decoders)
{
//セミコロン区切りで渡されるので
string[] exts = ici.FilenameExtension.Split(new char[] { ';' });
foreach (string ext in exts)
{
yield return(ext);
}
}
}
/// <summary>
/// Attempt to identify MIME information directly from the bytes of an image.
/// </summary>
/// <param name="image">Hydrated image to get MIME information from</param>
/// <returns>MIME information about the image</returns>
/// <remarks>NOTE: Codecs must be installed on computer running this assembly or .Net will not be able to determine the correct MIME information</remarks>
public MimeInfo this[Image image]
{
get
{
foreach (ImageCodecInfo codec in ImageCodecInfo.GetImageDecoders()) //EXTENSION Codec could be cached into a hashtable
{
if (codec.FormatID == image.RawFormat.Guid)
{
return(this[codec.FilenameExtension]);
}
}
throw new IndexOutOfRangeException(string.Format("Cannot determine MimeInfo for '{0}'", image.RawFormat.ToString()));
}
}
private static string GetGDIPSupportedImages()
{
if (supportedImages == null)
{
ImageCodecInfo[] imageDecoders = ImageCodecInfo.GetImageDecoders();
StringBuilder builder = new StringBuilder();
foreach (ImageCodecInfo info in imageDecoders)
{
builder.Append(info.FilenameExtension + ";");
}
supportedImages = builder.ToString().ToLower().Replace("*", string.Empty).Replace(".ico;", string.Empty);
}
return(supportedImages);
}
private static ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
/// <summary>
/// Finds the image decoder for a particular mimeType
/// </summary>
/// <param name="mimeType">MimeType that is needing decoded</param>
/// <returns>Decoder, if found</returns>
/// <exception cref="ArgumentException">Thrown when <paramref name="mimeType"/> is not found</exception>
public static ImageCodecInfo Decoder(string mimeType)
{
int intCt;
ImageCodecInfo[] aryEncoders = ImageCodecInfo.GetImageDecoders();
for (intCt = 0; intCt < aryEncoders.Length; intCt++)
{
if (aryEncoders[intCt].MimeType == mimeType)
{
return(aryEncoders[intCt]);
}
}
throw new ArgumentException("MimeType '" + mimeType + "' not found");
}
public static ImageCodecInfo getEncoder(this ImageFormat format)
{
try {
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
} catch { throw new Exception("Failed to get Encoder."); }
}
public void LoadSave()
{
//using (OpenFileDialog d = new OpenFileDialog())
//{
//if (d.ShowDialog() == DialogResult.OK)
//{
TargaImage image = new TargaImage(@"F:\3DContents\Modelos\Lightning\c001_01.tga");
MemoryStream ms = new MemoryStream(image.Image.Width * image.Image.Height * 32);
var decoders = ImageCodecInfo.GetImageDecoders();
image.Image.Save(ms, ImageFormat.Bmp);
File.WriteAllBytes("temp.bmp", ms.ToArray());
var bmpData = image.Image.LockBits(new System.Drawing.Rectangle(0, 0, image.Image.Width, image.Image.Height),
ImageLockMode.ReadWrite, image.Image.PixelFormat);
// Get the address of the first line.
IntPtr ptr = bmpData.Scan0;
// Declare an array to hold the bytes of the bitmap.
int bytes = Math.Abs(bmpData.Stride) * image.Image.Height;
byte[] rgbValues = new byte[bytes];
//Copy the RGB values into the array.
//System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
// Set every third value to 255. A 24bpp bitmap will look red.
//32bpp - BGRA
for (int counter = 0; counter < rgbValues.Length; counter += 3)
{
rgbValues[counter] = 255;
}
// Copy the RGB values back to the bitmap
System.Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes);
// Unlock the bits.
image.Image.UnlockBits(bmpData);
image.Image.Save("temp1.bmp", ImageFormat.Bmp);
Process.Start("temp1.bmp");
//var g = ((TestApplication)(TestApplication.CurrentApplication)).Form.CreateGraphics();
//g.DrawImage(image.Image, 0, 0);
//}
//}
}
public static ImageCodecInfo GetEncoder(ImageFormat format)
{
var codecs = ImageCodecInfo.GetImageDecoders();
foreach (var codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
// Return
return(null);
}
public static byte[] ToCompressedBytes(this Image image)
{
EncoderParameters parameters = new EncoderParameters(1);
parameters.Param[0] = new EncoderParameter(Encoder.Quality, _quality);
var jpegCodec = ImageCodecInfo.GetImageDecoders()
.First(c => c.FormatID == ImageFormat.Jpeg.Guid);
using (var stream = new MemoryStream())
{
image.Save(stream, jpegCodec, parameters);
return(stream.ToArray());
}
}
public static string GetExtensionFromImage(Bitmap image)
{
var format = image.RawFormat;
var codec = ImageCodecInfo.GetImageDecoders().FirstOrDefault(c => c.FormatID == format.Guid);
if (codec != null)
{
return(codec.FilenameExtension);
}
else
{
return(".png");
}
}
/*
* public static CvRect ToCvRect(Rectangle rectangle)
* {
* return new CvRect(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
* }
*
* public static Rectangle ToRectangle(CvRect cvRect)
* {
* return new Rectangle(cvRect.X, cvRect.Y, cvRect.Width, cvRect.Height);
* }
*/
public static string GetMimeTypeFromImage(Bitmap image)
{
var format = image.RawFormat;
var codec = ImageCodecInfo.GetImageDecoders().FirstOrDefault(c => c.FormatID == format.Guid);
if (codec != null)
{
return(codec.MimeType);
}
else
{
return("image/png");
}
}
private static MemoryStream Compress(Stream input, int quality = 0)
{
MemoryStream output;
Bitmap resized;
try
{
using (var image = new Bitmap(input))
{
int width = image.Width;
int height = image.Height;
resized = new Bitmap(width, height);
using (var graphics = Graphics.FromImage(resized))
{
graphics.CompositingQuality = CompositingQuality.HighSpeed;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.DrawImage(image, 0, 0, width, height);
output = new MemoryStream();
var qualityParamId = Encoder.Quality;
var encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(qualityParamId, quality);
var codec = ImageCodecInfo.GetImageDecoders().FirstOrDefault(c => c.FormatID == ImageFormat.Jpeg.Guid);
resized.Save(output, codec, encoderParameters);
}
}
return(output);
}
catch (Exception ex)
{
throw ex;
}
finally
{
output = null;
resized = null;
}
}
/// <summary>
/// 根据图片高度压缩图片
/// </summary>
/// <param name="InPath">图片路径</param>
/// <param name="height">高度(px单位)</param>
/// <param name="outPath">转移路径</param>
/// <param name="flag">压缩质量(数字越小压缩率越高) 1-100</param>
/// <returns></returns>
public bool YaSuoFixedHeight(string InPath, int height, string outPath, int flag)
{
var iSource = (Bitmap)Image.FromFile(InPath);
if (iSource == null)
{
return(false);
}
ImageFormat tFormat = iSource.RawFormat;
EncoderParameters ep = new EncoderParameters();
long[] qy = new long[1];
qy[0] = flag;
EncoderParameter eParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, qy);
ep.Param[0] = eParam;
try
{
ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageDecoders();
ImageCodecInfo jpegICIinfo = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICIinfo = arrayICI[x];
break;
}
}
string newext = outPath.Substring(outPath.LastIndexOf(".")).ToLower();
if (newext != ".jpeg" && newext != ".jpg")
{
jpegICIinfo = null;
}
if (jpegICIinfo != null)
{
iSource.Save(outPath, jpegICIinfo, ep);
}
else
{
iSource.Save(outPath, tFormat);
}
return(true);
}
catch
{
return(false);
}
iSource.Dispose();
}
public static string ShowImageDecoders()
{
StringBuilder sb = new StringBuilder();
ImageCodecInfo[] inflist = ImageCodecInfo.GetImageDecoders();
sb.Append("-------------------\r\n");
sb.Append("ImageDecoders Count: " + inflist.Length.ToString() + "\r\n");
foreach (ImageCodecInfo inf in inflist)
{
ShowCodecInfo(inf, sb);
}
return(sb.ToString());
}
public static byte[] ToByteArrayGdi(Bitmap resized, int quality)
{
using (var memoryStream = new MemoryStream()) {
var codec = ImageCodecInfo.GetImageDecoders()
.Where(c => c.FormatID == ImageFormat.Jpeg.Guid)
.FirstOrDefault();
var encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, quality);
if (codec != null)
{
resized.Save(memoryStream, codec, encoderParams);
}
return(memoryStream.ToArray());
}
}
public ImageCodecInfoTests()
{
decoders = new Hashtable();
encoders = new Hashtable();
foreach (ImageCodecInfo decoder in ImageCodecInfo.GetImageDecoders())
{
decoders[decoder.Clsid] = decoder;
}
foreach (ImageCodecInfo encoder in ImageCodecInfo.GetImageEncoders())
{
encoders[encoder.Clsid] = encoder;
}
}
private static ImageCodecInfo GetEncoder(ImageType imageType)
{
var format = ToFormat(imageType);
var codecs = ImageCodecInfo.GetImageDecoders();
foreach (var codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
public ImageMerger(string saveFilePath)
{
saveFile = new FileInfo(saveFilePath);
if (!saveFile.Directory.Exists)
{
throw new Exception("The directory path does not exist: " + saveFile);
}
parameters = new EncoderParameters();
parameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 80L);
encoder = Array.Find <ImageCodecInfo>(
ImageCodecInfo.GetImageDecoders(),
codec => (codec.FormatID == ImageFormat.Jpeg.Guid));
}
private static ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
ImageCodecInfo result = null;
foreach (var codec in codecs)
{
if (codec.FormatID == format.Guid)
{
Console.WriteLine(codec.CodecName);
result = codec;
}
}
return(result);
}
public void FixtureGetReady()
{
decoders = new Hashtable();
encoders = new Hashtable();
foreach (ImageCodecInfo decoder in ImageCodecInfo.GetImageDecoders())
{
decoders[decoder.Clsid] = decoder;
}
foreach (ImageCodecInfo encoder in ImageCodecInfo.GetImageEncoders())
{
encoders[encoder.Clsid] = encoder;
}
}
private ImageCodecInfo GetEncoder(ImageFormat format)
{
Neodynamic.SDK.Barcode.BarcodeProfessional.LicenseOwner = "Grupo Empresarial CT SA de CV-Ultimate Edition-OEM Developer License";
Neodynamic.SDK.Barcode.BarcodeProfessional.LicenseKey = "CWELTAJF8DTZP4RQEB6Y9RFPDH6EHE8J29PYSKF5B9LPZQHSMZJQ";
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}