what about the function calchist in opencv that return ahistogram of image

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calcHist(&srcImage,1,c,_mask,histMat,_channels.size(),h,(const float **)ranges, true, accumulate);

what is the meaning of each parameter in this function and how can i get the value of each
i don't understand what channels, ranges, mask, c, h, and accumulate and what about these values
i have just the image which i need it's histogram

thanks in advance

Posted 25-May-14 8:31am

MSMHMA

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Nelek · Accepted Answer · 2014-05-25T11:38:00

Solution 1

What is wrong with the explanation of the documentation[^]?

Posted 25-May-14 11:38am

Nelek

Comments

MSMHMA 25-May-14 20:30pm

thanks a lot but i now have a problem with channels meaning in my histogram what is the meaning of channel

Nelek 26-May-14 3:45am

I didn't say I know the answer, I just gave you a link I found with the information you were asking. I suppose that the channels are the different sources for your array of data. I can't tell you how it is, but if you search for information about histograms (probably a statitistic site will have good information about it) then you can learn the theory of it and combine it with the function of OpenCV

MSMHMA 25-May-14 20:35pm

what is the meaning of
1.we calculate the histogram from 0,1 channels
2.channels={0,1}