paip.c#图片裁剪

paip.c#图片裁剪

   pictureBox1.Image=PTImage.CutForCustomx(@"d:\img.jpg",100,300);
            pictureBox1.Image.Save(@"d:\img2.jpg");

        public static Image CutForCustomx(string imgPath, int top,int height)
        {

            FileStream fs = new FileStream(imgPath, FileMode.Open, FileAccess.Read);
            //从文件获取原始图片，并使用流中嵌入的颜色管理信息
            System.Drawing.Image initImage = System.Drawing.Image.FromStream(fs, true);

            Bitmap b = new Bitmap(initImage);

            Bitmap img = b.Clone(new Rectangle(0, top, initImage.Width, height), System.Drawing.Imaging.PixelFormat.DontCare);
            return (Image)(img);

        }

public static Image CutForCustomx(string imgPath, Rectangle rec)
{

FileStream fs = new FileStream(imgPath, FileMode.Open, FileAccess.Read);
//从文件获取原始图片，并使用流中嵌入的颜色管理信息
System.Drawing.Image initImage = System.Drawing.Image.FromStream(fs, true);

Bitmap b = new Bitmap(initImage);

Bitmap img = b.Clone(rec, System.Drawing.Imaging.PixelFormat.DontCare);
return (Image)(img);

}