在不损失任何质量的情况下调整图像大小 [英] Resizing an Image without losing any quality

问题描述

如何在不影响图像质量的情况下调整图像大小?

How can I resize an image, with the image quality unaffected?

推荐答案

As rcar 说，你不能不损失一些质量，在 c# 中你能做的最好的是:

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));
}

这篇关于在不损失任何质量的情况下调整图像大小的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！