How can I extract one-dimentional color histograms features?

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hamed abdulaziz
hamed abdulaziz 2014-3-11
编辑： hamed abdulaziz 2014-3-11
Hi All,
I have an image and I need to extract local features,so I divided it to 32 * 32 patches and size of each patch =16 *16 pixels and extract that three color histograms features locally from each patch,I read a paper that used one-dimentional color histograms as features but I am confused what it means by one-dimentional color histograms?and which matlab function calculate it
by using
[counts, x] = imhist (patch)
, I think that the counts are local features(is it correct)?
or by using
hist(patch) ?

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