Image processing

Sure, they are quite a few image processing techniques used in games today, primarily in the form of post process effects. Edge detection for things like outline/toon shaders, color correction, blurring, contrast adjustments, compositing using various blending algorithms, etc..
Daniel

I think he means image processing as in computer vision.

Why would you think that? Sure image processing algorithms are used in computer vision, but as far as I know image processing isn't synonymous with computer vision. If he did mean computer vision, I can't think of any use that makes sense, though there was a thread about this a little while back on the AI forum. :)
Daniel

One reason to think he was meaning computer vision was his "takes too much time so it can't be real time". ;)

I am not aware of any game using image analysis to retreive data from it. It could be done to do visibility checks, but as you stated, it might be too slow to be real time.

Cheers!

Eric

The above is me...