Question

Does anybody have a sample code on how i could open a tif file, copy it out to a new locate from indexed pixel to new bitmap 32?

I found this http://fci-h.blogspot.com/2008/02/c-indexed-pixel-problem.html But i’m to new to piece it together. Is there a possible way to just read this all in memory without actually creating a new file?

What I mean is this. I have to find the original file (which i already got). Copy the file to a temp location (which I got). What I don’t understand is how when I copy that new file I need to keep the original size and give the new file a bitmap of 32.

I can’t draw an image over the picturebox because C# doesnt really support indexed pixels.

Answer 1

This does what you want I think…

If you dont need to save it, just work with ‘bm’ after you do the DrawImage, that is your image as a Bitmap…

            Bitmap bm = (Bitmap)System.Drawing.Image.FromFile("TifFilePath.tif", true);
            Bitmap tmp = new Bitmap(bm.Width, bm.Height);
            Graphics grPhoto = Graphics.FromImage(tmp);
            grPhoto.DrawImage(bm, new Rectangle(0, 0, tmp.Width, tmp.Height), 0, 0, tmp.Width, tmp.Height, GraphicsUnit.Pixel);
            bm.Save("JPGFilePath.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
            grPhoto.Dispose();