Convert bitmaps to one multipage TIFF image in .NET 2.0

Question

How can i convert an array of bitmaps into a brand new image of TIFF format, adding all the bitmaps as frames in this new tiff image?

using .NET 2.0.

Answer 1

Start with the first bitmap by putting it into an Image object

Bitmap bitmap = (Bitmap)Image.FromFile(file);

Save the bitmap to memory as tiff

MemoryStream byteStream = new MemoryStream();
bitmap.Save(byteStream, ImageFormat.Tiff);

Put Tiff into another Image object

Image tiff = Image.FromStream(byteStream)

Prepare encoders:

        ImageCodecInfo encoderInfo = GetEncoderInfo("image/tiff");

        EncoderParameters encoderParams = new EncoderParameters(2);
        EncoderParameter parameter = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
        encoderParams.Param[0] = parameter;
        parameter = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
        encoderParams.Param[1] = parameter;

Save to file:

 tiff.Save(sOutFilePath, encoderInfo, encoderParams);

For subsequent pages, prepare encoders:

    EncoderParameters EncoderParams = new EncoderParameters(2);
    EncoderParameter SaveEncodeParam = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);
    EncoderParameter CompressionEncodeParam = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
    EncoderParams.Param[0] = CompressionEncodeParam;
    EncoderParams.Param[1] = SaveEncodeParam;
    tiff.SaveAdd(/* next image as tiff - do the same as above with memory */, EncoderParams);
    }

Finally flush the file:

    EncoderParameter SaveEncodeParam = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.Flush);
    EncoderParams = new EncoderParameters(1);
    EncoderParams.Param[0] = SaveEncodeParam;
    tiff.SaveAdd(EncoderParams);

That should get you started.

Answer 2

Not being a fan of Microsoft's track record when it comes to handling and creating files of standardized formats, I would suggest using ImageMagick, available as a .Net library in the form of MagickNet (beware, http://midimick.com/magicknet/ currently has a spyware popup, I have alerted the site owner).