rgb2hsv conversion

can any one tell me what does each matrix of

rgb2hsv in matlab represent.

does h value represent value in radians.

what about s and v?

can any one help?

Answer 1

[Andrew Newell]

HSV stands for Hue, Saturation, and Value (also known as Brightness). See this Wikipedia article for an explanation of these terms.

[Mohammad Golam Kibria]

what I need to know is explained bellow elaborately:

suppose I have a matrix I as follows:

I(:,:,1) =

1 1 1

2 2 2

3 3 3

I(:,:,2) =

55 55 55

55 55 55

55 55 55

I(:,:,3) =

200 200 200

200 200 200

200 200 200

After converting rgb to HSV I have the following output:

I1=rgb2hsv(I)

I1(:,:,1) =

0.6214 0.6214 0.6214

0.6221 0.6221 0.6221

0.6227 0.6227 0.6227

I1(:,:,2) =

0.9950 0.9950 0.9950

0.9900 0.9900 0.9900

0.9850 0.9850 0.9850

I1(:,:,3) =

0.7843 0.7843 0.7843

0.7843 0.7843 0.7843

0.7843 0.7843 0.7843

perhaps I1(:,:,1) denotes H value.

The value I1(1,1,1) i.e 0.6214 what this value mean, is it .6214 degree or 0.6214 radian. perhaps i can clear what I need to know.

[Walter Roberson]

0.6214 fraction of a circle. Radians divided by 2*Pi