Getting color intensity values
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I'm trying to get color values for single points that I can then use to plot these points in sort of a "intensity scatter plot"
I would ideally like to set the caxis limits using my dataset min/max, then loop through the data and get RGB values for every point, that I could then use for the scatter plot.
Anyone know of any function that exists to do this?
1 个评论
Walter Roberson
2012-4-20
Single points of what? Of an image? Of an array?
Do you mean "intensity" in the sense of luminance, or in the sense of point density ?
回答（1 个）
Image Analyst
2012-4-20
0 个投票
I did make my own MATLAB-only 3D color gamut scatterplot but it's very slow and not as good as the ImageJ version. If you really want that, let me know.
Or perhaps you'd like this: http://blogs.mathworks.com/pick/2010/07/30/drawing-color-histograms-and-color-clouds/
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2012-4-20
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