调整图像大小不会失去任何质量 [英] Resizing an Image without losing any quality

问题描述

我需要调整图像，但图像质量不能受此影响。

I need to resize an image, but the image quality cannot be affected by this.

推荐答案

作为<一个href=\"http://stackoverflow.com/questions/87753/resizing-an-image-without-losing-any-quality#87763\">rcar说，你不能没有失去一些质量最好的你可以在C＃中做的是：

As rcar says, you can't without losing some quality, the best you can do in c# is:

Bitmap newImage = new Bitmap(newWidth, newHeight);
using (Graphics gr = Graphics.FromImage(newImage))
{
    gr.SmoothingMode = SmoothingMode.HighQuality;
    gr.InterpolationMode = InterpolationMode.HighQualityBicubic;
    gr.PixelOffsetMode = PixelOffsetMode.HighQuality;
    gr.DrawImage(srcImage, new Rectangle(0, 0, newWidth, newHeight));
}

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