C#图片剪裁类
public class ImageCut { /// <summary> /// 剪裁 -- 用GDI+ /// </summary> /// <param name="b">原始Bitmap</param> /// <param name="StartX">开始坐标X</param> /// <param name="StartY">开始坐标Y</param> /// <param name="iWidth">宽度</param> /// <param name="iHeight">高度</param> /// <returns>剪裁后的Bitmap</returns> public Bitmap KiCut(Bitmap b) { if (b == null) { return null; } int w = b.Width; int h = b.Height; if (X >= w || Y >= h) { return null; } if (X + Width > w) { Width = w - X; } if (Y + Height > h) { Height = h - Y; } try { Bitmap bmpOut = new Bitmap(Width, Height, PixelFormat.Format24bppRgb); Graphics g = Graphics.FromImage(bmpOut); g.DrawImage(b, new Rectangle(0, 0, Width, Height), new Rectangle(X, Y, Width, Height), GraphicsUnit.Pixel); g.Dispose(); return bmpOut; } catch { return null; } } public int X = 0; public int Y = 0; public int Width = 120; public int Height = 120; public ImageCut(int x, int y, int width, int heigth) { X = x; Y = y; Width = width; Height = heigth; } }