I want to detect color of vehicles ?

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i manged to get a histogram for the color and it gives me H,S and V values. How can i use this value to select the color.

for an example i get H=100 ,S=29 and V=171 so how can i compare this value with a color? (how to define color ranges to compare?)

This is the primary colors: https://en.wikipedia.org/wiki/Web_col...

The in-betweens get fuzzy though.

how to define those colors in the code? i am stuck with that :(

You see the columns on the table that have (HSV) in the description? Those are your HSV values that you are finding. Put each color in the table in as a constant, and find the one that is closest to your calculated color. For example, your color seems to be a light green.

thank you!! i am actually new to this. so you are saying that make an array containing those value and find the nearest from a method like k nearest neighbor value? or is there any easy method?

I would make an array with those values, and just use the sum of squared differences (c1-h1)^2+(c2-h2)^2+... to find the distance between each color and the value you get. K nearest neighbor is probably overkill.

thanks mate!! :)

hey, can you please give me an example code for this distance calculating. i am quite new to this.

https://en.wikipedia.org/wiki/Distanc...

in this i have to consider multiple array as i have H,S and V values so when comparing i have to predefine colors with HSV values and compare that array with pixels color array??