// From SaveImageToFile, JpegCompress
public static byte[] EncodeImage(Image image, ImageFormat destFormat, int quality = 80)
{
byte[] imageBytes;
if ((destFormat == null) || (image.RawFormat.Equals(destFormat)))
{
imageBytes = ImageTools.ByteArrayFromImage(image);
}
else
{
EncoderParameters encoderParams = null;
if (destFormat.Equals(ImageFormat.Jpeg))
{
// quality is used by Jpeg and probably ignored by other formats
encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
}
imageBytes = ImageTools.EncodeImageParams(image, destFormat, encoderParams);
}
return(imageBytes);
}
private static byte[] EncodeImageParams(Image image, ImageFormat format, EncoderParameters encoderParams)
{
System.Diagnostics.Debug.Assert(format != null);
byte[] result = null;
ImageCodecInfo codecInfo = GetEncoderInfo(format);
if (codecInfo != null)
{
using (MemoryStream stream = new MemoryStream())
{
image.Save(stream, codecInfo, encoderParams);
result = stream.ToArray();
}
}
else
{
// Default image native data to byte array without encoding
result = ImageTools.ByteArrayFromImage(image);
}
return(result);
}
public ImageInfo Clone()
{
return(new ImageInfo(ImageTools.ImageClone(fSystemImage)));
}
public ImageInfo GetThumbnail(int maxWidth, int maxHeight)
{
return(new ImageInfo(ImageTools.CreateThumbnail(fSystemImage, maxWidth, maxHeight)));
}