mar*_*zzz 3 c# image image-processing
假设我有一个400x300px的图像,我想在服务器端(C#,.NET 4.0)将其剪切为200x200px.
我该怎么做?使用一种画布并移动它?任何教程/代码示例/建议?
小智 5
尝试这样的事情:
Bitmap sourceImage = ...;
int targetWidth = 200;
int targetHeight = 200;
int x = sourceImage.Width / 2 - targetWidth / 2;
int y = sourceImage.Height / 2 - targetHeight / 2;
Rectangle cropArea =
new Rectangle(x, y, targetWidth, targetHeight);
Bitmap targetImage =
sourceImage.Clone(cropArea, sourceImage.PixelFormat);
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如果源图像小于目标图像大小,这显然会失败,但你明白了.