Thanks Martin. I've never played with Targa files before so I just have a bit of hesitancy in jumping into them but I'll just bite the bullet and see where I can go with them today. Graphics programming is all very new to me but extremely fun. I'm amazed at the results I can get with just a few lines of code and routines such as yours and others I've found online. My next challenge is truly understanding the underlying complexity of image structures and API functions you're calling to get the results you do.