how can i generate the histogram of an hsv image?

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Josephine
Josephine 2013-12-17
评论： Image Analyst 2013-12-17
hi i wanna generate the histogram of an hsv image without using the hist function of matlab. can someone give me an algorithm or a step-by-step process on this? thanks in advance.

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Walter Roberson
Walter Roberson 2013-12-17
counters = zeros(1,10);
Hpart = YourImageAsHSV(:,:,1);
for K = 1 : numel(Hpart)
if Hpart(K) < 255/10
counters(1) = counters(1) + 1;
elseif Hpart(K) < 2*255/10
counters(2) = counters(2) + 1;
elseif Hpart(K) < 3*255/10
counters(3) = counters(3) + 1;
elseif Hpart(K) < 4*255/10
....
else
counters(10) = counters(10) + 1;
end
end
counters is now the 10-bin histogram of the "H" part of the HSV image.

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