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Re: [not-FIRST] Camera Image Processing
Well, to do the task that you are describing should be pretty simple:
1. Run the entire image through a color thresholding algorithm--replace pixels that are "close" to your desired color with a 1, and everything else with a 0.
2. If you want to do this the way the CMUCam does, scan through the resulting binary array, and every time a 1 is encountered add its X and Y coordinates (your scan variables) to separate large registers. Also increment another register that will hold the total number of 1s encountered. Divide X and Y by that register, and you will have the center and size of the blob in a very similar manner to the CMUCam.
If you need to isolate different blobs of the same color, this becomes more involved. You can take a look at my FALCON system's algorithms for one complicated but quite effective way to do it.
Hope this helps some!
Eldarion
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27-02-2008, 01:47
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