Is there any alternate method to extract individual Y, Cb and Cr components than this one?

Hi,

I have converted an RGB image to YCbCr using rgb2ycbcr. Now I want to extract the individual Y, Cb and Cr components from it.

This is what I have done:

YCbCr = rgb2ycbcr(I);

figure(3);

Y = YCbCr(:,:,1)

Cb = YCbCr(:,:,2)

Cr = YCbCr(:,:,3)

imagesc(Y);

But I am not getting the expected Y component. Is there any other method for doing this?

Answer 1

[Image Analyst]

Why do you think it's wrong?

Alternatively you can use rgb2hsv() and take the v channel or rgb2lab and take the L channel. What do you want to do anyway? Why don't you attach your image and say what you want to do or measure?