Density based heatmap of an image-Opencv

Question

Im looking to implement a heatmap of a video in OpenCv...Im aiming for three colours where colour1 represents maximum density,colour 2 represents lower density and so on...Any idea how I can go about this??Im not able to find any generic links on how to design a heatmap on the net.

score 1 · Accepted Answer · edited May 23 '17 at 11:59

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I think this is what you're looking for:

OpenCV: How to visualize a depth image

OpenCV has (in the contrib module) a color mapping algorithm, together with some pre-defined maps, very similar to what you'd find in Matlab.

edited May 23 '17 at 11:59

Community

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answered Aug 06 '13 at 12:56

Sam

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Thanks...Thats is what Im looking for..I will repost here if I have any more doubts..@sammy – ashwin shanker Aug 06 '13 at 13:18
I wasnt able to get good results..@Sammy....Could you help me with the general algorithm(in words) of the code you have posted in that answer..Thanks!! – ashwin shanker Aug 06 '13 at 14:23

Density based heatmap of an image-Opencv

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