separating rgb values of an image
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Hi all
can someone tell me where i am going wrong?
I have my code, I want to separate the r g b values of the image! so for example if the image is 245x984x345
the r b g value will be separated such as it may have 100 red values 345 blue and the rest green.
when i try displaying the variables r g b separately the image are of various shades of gray!
i am not sure what is happening!
Please assist!
%Exercise 1
im = imread('scr.jpg');
whos im
r=im(:,:,1);
g=im(:,:,2);
b=im(:,:,3);
imshow(r);
figure;
imshow(r),title('Red values displayed');
figure;
imshow(g),title('Green values displayed');
figure;
imshow(b),title('Blue values displayed');
figure;
whos
%Exercise 2
g1=r+g+b/3;
imshow(g1),title('g1 Generic Average Formula');
figure;
%Exercise 3
g2=0.3*r+0.59*g+0.11*b/3;
imshow(g2),title('g2 Actual Average Formula');
figure;
subplot(2,2,1),imshow(im),title('original image');
subplot(2,2,2),imshow(r),title('red plane');
subplot(2,2,3),imshow(g),title('green plane');
subplot(2,2,4),imshow(b),title('blue plane');
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Réponses (1)
Walter Roberson
le 30 Août 2019
z = zeros(size(img));
r = z; r(:,:,1) = img(:,:,1);
g = z; g(:,:,2) = img(:,:,2);
b = z; b(:,:,3) = img(:,:,3);
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