Colormap for Connected Components in an image
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CuriousThinker
on 27 Feb 2016
Commented: CuriousThinker
on 13 Mar 2016
Hello all,
Is there a way I can assign individually different colors to the connected components obtained using bwareafilt() function, labeled in an image? I have tried using colormap() function. But it doesn't work.
Thanks in advance.
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Accepted Answer
Image Analyst
on 27 Feb 2016
Yes. See this snippet from my Image Segmentation Tutorial:
% Let's assign each blob a different color to visually show the user the distinct blobs.
coloredLabels = label2rgb (labeledImage, 'hsv', 'k', 'shuffle'); % pseudo random color labels
% coloredLabels is an RGB image. We could have applied a colormap instead (but only with R2014b and later)
imshow(coloredLabels);
axis image; % Make sure image is not artificially stretched because of screen's aspect ratio.
caption = sprintf('Pseudo colored labels, from label2rgb().\nBlobs are numbered from top to bottom, then from left to right.');
title(caption, 'FontSize', 20);
4 Comments
Image Analyst
on 7 Mar 2016
I don't see how it could color just a corner of the squares since the square is a solid color throughout. You'll have to share your code for me to fix it.
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