private static Image TransformJpeg(Image image, EncoderValue transformationCode)
{
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Transformation, (long)transformationCode);
byte[] imageBytes = ImageTools.EncodeImageParams(image, ImageFormat.Jpeg, encoderParams);
return(ImageFromByteArray(imageBytes));
}
// 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);
}