Simply load the image into a new bitmap instance, then use the GetPixel
method, passing in your x and y coordinates to return a color value for that
pixel, from that you can poll it's R, G and B properties (as well as many
others), to find the information you want on it.
So your code would look something like...
Bitmap myBitmap = new Bitmap(@"C:\MyImage.jpg");
Color myPixel = myBitmap.GetPixel(x,y);
Brendan
//myPixel.R = Red value
//myPixel.G = Green value
//myPixel.B = Blue value
"yo mamma" wrote:
Hello. I have a scanned document that I need to check certain
coordinates for rgb values (for example multiple choice questions). I'm
assuming that I can do this using a bitmap object, but I have no idea
where to start! Any help is greatly appreciated.
Regards,
Joe