net图片转格式

http://blog.csdn.net/nrlovestudy/article/details/48137339

图片转格式

Bitmap bmp=new Bitmap("filename");
bmp.Save(".bmp",ImageFormat.bbp24);

 

Image imgOriginal = Image.FromFile(strOriginalImagePath);

Image imgOriginal = Image.FromStream(fileImg.InputStream);

using (Bitmap source = new Bitmap("source.jpg"))
            {
                using (Bitmap bmp = new Bitmap(source.Width, source.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb))
                {
                    Graphics.FromImage(bmp).DrawImage(source, new Rectangle(0, 0, bmp.Width, bmp.Height));
                    bmp.Save("result.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
                }
            }

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