c# 裁剪图片

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于 2022-09-25 20:00:11 发布

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文章标签： c#

本文链接：https://blog.youkuaiyun.com/qq_30206643/article/details/127012682

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//200-300ms
public static Bitmap img_tailor(Bitmap src, Rectangle range)
{
    return src.Clone(range, System.Drawing.Imaging.PixelFormat.DontCare);
}

for (int nYClipNumIndex = 0; nYClipNumIndex < nYClipNum; nYClipNumIndex++)
     {
         for (int nXClipNumIndex = 0; nXClipNumIndex < nXClipNum; nXClipNumIndex++)
         {
             int nClipWidth = (int)(bitmapSource.Width / nXClipNum);
             int nClipHight = (int)(bitmapSource.Height / nYClipNum);
             //int nBmpIndex = nXClipNumIndex + nYClipNumIndex * nYClipNum + (nYClipNumIndex > 0 ? 1 : 0);
             int nBmpIndex = nXClipNumIndex + nYClipNumIndex * nYClipNum;
             bmpaClipBmpArr[nBmpIndex] = new Bitmap(nClipWidth, nClipHight);
             int nClipX = nClipWidth * nXClipNumIndex;
             int nClipY = nClipHight * nYClipNumIndex;
             bmpaClipBmpArr[nBmpIndex] = img_tailor(bitmapSource, new Rectangle(nClipX, nClipY, nClipWidth, nClipHight));}}