how can i make use of sliding window to separate r,g,b channels?

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vidya 2014-1-20

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https://ww2.mathworks.cn/matlabcentral/answers/112981-how-can-i-make-use-of-sliding-window-to-separate-r-g-b-channels

评论： vidya 2014-1-21

good day all I am working on optic disc localization,i wanted to know ,how to implement sliding window technique using [80 80] pixels over an retinal image and with every moving window i would separate the r,g,b channels and obtain histogram of each channel

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Answer 1

Image Analyst 2014-1-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/112981-how-can-i-make-use-of-sliding-window-to-separate-r-g-b-channels#answer_121484

在 MATLAB Online 中打开

See the FAQ : http://matlab.wikia.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F

Another snippet which may be useful for you:

% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
% Recombine separate color channels into a single, true color RGB image.
rgbImage = cat(3, redChannel, greenChannel, blueChannel);