How can i read the whole RGB image pixel by pixel with their values and to check that if pixels have specific value please guide me

2013 4 27
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更新时间：2017 1 31
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How can i read the whole RGB image pixel by pixel with their values and to check that if pixels have specific value please guide me

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Chandra Shekhar
Chandra Shekhar 2013-4-27
编辑：Chandra Shekhar 2013-4-27

0 个投票

Suppose your image size is 50*50, then u separate each RGB plane.
image=imread('img.jpg');
R=image(:,:,1); or R=image(1:50,1:50,1);
G=image(:,:,2); or G=image(1:50,1:50,2);
B=image(:,:,3); or B=image(1:50,1:50,3);
by varying row and column of each plane you can check pixel values.
I hope this is answer for your question.

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Ruchi
Ruchi 2013-4-27
Thanks for ur response Actually i need to read pixel values to match whether it is "1" or not.so could you please explain what will be the code for this...
Chandra Shekhar
Chandra Shekhar 2013-4-27
编辑：Chandra Shekhar 2013-4-28
I=imread('board.tif');
[m n k]=size(I);
for l=1:k
for i=1:m
for j=1:n
if I(i:j:l)==1
do
else
dont
end
end
end
end

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