Analysis of color quantities?

[Peter_Coe@adobeforums.com]

I was wondering if anyone knows a method of analyzing the quantities of particular colors in an image. For instance, if there is a specific color in an image, how would I calculate the number of pixels with that color (or nearly that color) or the percentage of the image with that color?

I have heard that Photoshop is used in medical practice in this way to analyze x-rays and cat scans.

Any techniques or plugins known?

thanks

[John_Slate@adobeforums.com]

make a selection of the color and image>histogram will tell you how many pixels are selected

[Peter_Coe@adobeforums.com]

Thanks for the help!