HSV colour space and CvInRangeS function

Question

cvInRangeS(imgHSV, cvScalar(15, 234, 120), cvScalar(21, 234, 120), imgThreshed);

I am wondering what each parameter in the cvScalar function represents. I thought it would be HSV but it doesnt seem to be thresholding the desired color. Could someone explain the parameters a bit clearer?

Answer 1

It means

H - Hue, S - Saturation, V - Value

take a look in here for understanding each one of those:

http://en.wikipedia.org/wiki/HSL_and_HSV

the color is mainly defined in the Hue component. There is a good tutorial about thresholding in HSV space in here:

http://aishack.in/tutorials/thresholding/