答案 0 :(得分:2)
假设你知道原始位图的大小,你可以克隆一个位图的矩形:
Bitmap bitmapLeft = bitmap.Clone(new Rectangle(0, 0, widthLeft, heightLeft), PixelFormat.DontCare);
Bitmap bitmapRight = bitmap.Clone(new Rectangle(widthLeft, 0, widthRight, heightRight), PixelFormat.DontCare);