提高调整大小图像的质量 [英] Increase the quality of resize image

问题描述

Image backImage = Image.FromFile(Imagepath);
Image resolutionBackImage = backImage.GetThumbnailImage(height ,width, null, System.IntPtr.Zero);
resolutionBackImage.Save(path);

通过使用上面的代码调整图像的大小.但是其质量还不够.因此，请告诉我一种提高上述代码接收图像质量的方法.非常感谢

The image was resized by using above code. But its quality is not enough. So please tell me a way to increase the image quality recieving from above code. Thanks a lot

推荐答案

尝试这些来自stackoverflow的链接

http://stackoverflow.com/questions/249587/high-quality-image-scaling-c [^ ]

http://stackoverflow.com/questions/87753/resizing-an-image-没有丢失任何质量 [ ^ ]

Try these links from stackoverflow

http://stackoverflow.com/questions/249587/high-quality-image-scaling-c[^]

http://stackoverflow.com/questions/87753/resizing-an-image-without-losing-any-quality[^]

private static void TransformImage(int width, int height, string path, Image image,  
            float scale) 
        { 
            Bitmap thump = new Bitmap(width, height); 
            Graphics graphics = Graphics.FromImage(thump); 
            Matrix transform = new Matrix(); 
 
            transform.Scale(scale, scale, MatrixOrder.Append); 
            graphics.SetClip(new Rectangle(0, 0, width, height)); 
            graphics.Transform = transform; 
            graphics.InterpolationMode = InterpolationMode.HighQualityBicubic; 
            graphics.DrawImage(image, 0, 0, image.Width, image.Height); 
 
            ImageCodecInfo[] Info = ImageCodecInfo.GetImageEncoders(); 
            EncoderParameters Params = new EncoderParameters(1); 
            Params.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L); 
            thump.Save(path, Info[1], Params); 
            
            thump.Dispose(); 
            graphics.Dispose(); 
}

这篇关于提高调整大小图像的质量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！