Resizing an Image without losing any quality [closed]

Question

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

Answer 1

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)); }