To Know the total number of pixels which belongs to one color

Hi,

May I know is there any coding that can be used to know the total number of pixels that belongs to certain color?

Thanks.

Answer 1

[Sabarinathan Vadivelu]

I = imread('peppers.png');
RedPlane = I(:,:,1);
GreenPlane = I(:,:,2);
BluePlane = I(:,:,3);

This how you may extract separate color planes in an RGB Image

[leow]

Hi,

I have set my coding to C(im>=5.5 & im<6.5) = {uint8(cat(3,0,0,255))};

Is there any coding that can be use to count the number of pixel that belongs to the range of C(im>=5.5 & im<6.5)?

Thanks.