但是对于一个Gif进行拆分，其实Image对象本身就支持，例如对于一个Gif文件拆分成Jpeg文件方式，可以按照如下的方式进行处理。

    using System.Drawing.Drawing2D;

    using System.Drawing.Imaging;

    Image imgGif = Image.FromFile(@"d:\test.gif");

    //Create a new FrameDimension object from this image

    FrameDimension ImgFrmDim = new FrameDimension( imgGif.FrameDimensionsList[0] );

    //Determine the number of frames in the image

    //Note that all images contain at least 1 frame,

    //but an animated GIF will contain more than 1 frame.

    int nFrameCount = imgGif.GetFrameCount( ImgFrmDim );

    // Save every frame into jpeg format

    for( int i = 0; i < nFrameCount; i++ )

    {

        imgGif.SelectActiveFrame( ImgFrmDim, i );

        imgGif.Save( string.Format( @"d:\Frame{0}.jpg", i ), ImageFormat.Jpeg );

    }