Constructing color histogram!!

[xpertbyshishir]

I am trying to make a hsv histogram for storing different values.. It will will give me the max value for a pixel region in the image.. how do i go abt making a histogram.. so that i can compare values?

[JosAH]

I am trying to make a hsv histogram for storing different values.. It will will give me the max value for a pixel region in the image.. how do i go abt making a histogram.. so that i can compare values?

You do realize that the hsv (hue, saturation, value (brightness)) color space is
a 3 dimensional color space? An image (of pixels or single hsv triples) is a two
dimensional space of its own. How do you want to create a histogram out of all
those values?

kind regards,

Jos

[r035198x]

I am trying to make a hsv histogram for storing different values.. It will will give me the max value for a pixel region in the image.. how do i go abt making a histogram.. so that i can compare values?

So you don't have any ideas/code for this yet?
Please post the ideas that you have for this first.

[xpertbyshishir]

I am intending to divide the image region into equal size boxes ..(prob 256)
Each region will have a max value of hsv for the region , that is computed by the algo.. sample space would contain images with 256 regions and value of each region being set to highest value of hsv for that region.. now i would like to compare query image with sample space for corr. values .. so for this i want to store hsv information in histogram .. how should i go about constructing histogram?

[JosAH]

I am intending to divide the image region into equal size boxes ..(prob 256)
Each region will have a max value of hsv for the region

Suppose there are two hsv triples: (10, 0, 0) and (0, 0, 10). Which one of the two
is the maximum? I think you should define your algebra on hsv values a bit more.

kind regards,

Jos