public static void CreateTiffImage(Image[] images, string path, TiffCompressType compressType)
{
if (images == null || images.Length == 0)
{
return;
}
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
var coderInfo = getCodecForstring("image/tiff");
EncoderParameters encoderParams = null;
Image tiffImg = null;
if (images.Length == 1)
{
encoderParams = new EncoderParameters(1);
var param1 = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, GetCompressType(compressType));
encoderParams.Param[0] = param1;
tiffImg = new Bitmap(images[0]);
tiffImg.Save(path, coderInfo, encoderParams);
}
else
{
encoderParams = new EncoderParameters(2);
var param1 = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
var param2 = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, GetCompressType(compressType));
encoderParams.Param[0] = param1;
encoderParams.Param[1] = param2;
using (System.IO.FileStream stream = new System.IO.FileStream(path, System.IO.FileMode.CreateNew))
{
tiffImg = new Bitmap(images[0]);
tiffImg.Save(stream, coderInfo, encoderParams);
for (int i = 1; i < images.Length; i++)
{
encoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);
tiffImg.SaveAdd(images[i], encoderParams);
}
encoderParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.Flush);
tiffImg.SaveAdd(encoderParams);
}
}
}
private static long GetCompressType(TiffCompressType compressType)
{
switch (compressType)
{
case TiffCompressType.LZW:
return((long)EncoderValue.CompressionLZW);
case TiffCompressType.CCITT_GROUP3_MH:
return((long)EncoderValue.CompressionCCITT3);
case TiffCompressType.CCITT_GROUP4_MMR:
return((long)EncoderValue.CompressionCCITT4);
case TiffCompressType.PACK_BITS:
return((long)EncoderValue.CompressionRle);
default:
return((long)EncoderValue.CompressionNone);
}
}
