MATLAB: How to generate histograms for superpixel

computer visionimage processingImage Processing Toolboxsuperpixels

I have an RGB image converted into Lab image. Generated 44 superpixels and calculated MeanIntensities and pixellist and centroids.How to generate histograms for each superpixel?

Best Answer

You can loop over the properties extracted by regionprops
props = regionprops(labeledImage, superPixelImage, 'PixelValues');
for k = 1 : length(props)
    % Get the pixel values of this region alone:
    thesePixelValues = props(k).PixelValues;
    % Histogram this region's gra levels.
    counts = imhist(thesePixelValues);
    % Now do something with counts....
end
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