adding color to grey scale video

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Hello,

I have a system that generates 8-bit grey scale video. The frame data is in ram, 8-bit grey scale 656 format. Depending upon the value of each pixel I want to be able to colorize the data. I really have no idea as to how to do that. Does anyone have any suggestions?

Thanks

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The video data represents temperature for each pixel so I want to, say for instance, if a particular pixel is above a certain temperature, make that pixel red, or a group of pixels to represent a temp gradient, how would I do that.

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I understand you are trying to beautify the grey-scale image.

A way to do this is to traverse one of the six sides of the rgb colour cube (http://http://www.mathworks.com/help/toolbox/images/color7.gif). E.g. to get images form dark-blue for grey-value 0, to fiery-red for grey-value 255, you could use the following formula:

R <= grey_value ;

B <= 255 - grey_value ;

G <= 0 ;

Or traverse the colour cube from blue to yellow: start from R=0,B=255,G=0 for grey-value 0 towards R=255,B=0,R=255 for grey-value 255.

Of course you can think of other variations ...