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

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leow 2013-8-19

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.

Sabarinathan Vadivelu 2013-8-19

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 2013-8-19

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.

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