extract regions detected by watershed segmentation
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Hello,
I have found this code in image processing toolbox of matlab for image segmentation through watershed function:
Really, I gaven't understood the code, and I want to extract regions detected after segmentation with the function watershed and represent each region with its dominant color. So can you help me?
I want to extract those regions, so where find them?
Thanks
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Image Analyst
2013년 5월 22일
Related to her other question: http://www.mathworks.com/matlabcentral/answers/65055-dominant-color-for-an-rgb-image
답변 (2개)
Image Analyst
2013년 5월 22일
Once you have the binary image, you simply call regionprops() for each color channel to get the color for that color channel in each labeled region. See my demos for examples: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Now do your marker controled watershed segmentation
% to get your binary image. Then:
labeledImage = bwlabel(binaryImage);
% Make color measureents.
measurementsRed = regionprops(labeledImage, redChannel, 'MeanIntensity');
measurementsGreen = regionprops(labeledImage, greenChannel, 'MeanIntensity');
measurementsBlue = regionprops(labeledImage, blueChannel, 'MeanIntensity');
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