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Please help! Trying to convert greyscale image back to rgb. error "rbg" not defined when using conversion code.

Asked by Jonathan Harris on 22 Apr 2019
Latest activity Answered by Naman Bhaia on 2 May 2019
Sun=imread('noisePhoto.jpg');
Sun2=rgb2gray(Sun);
subplot(1,3,1)
title('Original')
imshow(Sun)
[m,n]= size(Sun2);
output=zeros(m,n);
for i=1:m
for j=1:n
rmin=max(1,i-1);
rmax=min(m,i+1);
cmin=max(1,j-1);
cmax=min(n,j+1);
%neigborhood
temp=Sun(rmin:rmax,cmin:cmax);
output(i,j)=mean(temp(:));
end
end
output=uint8(output);
subplot(1,3,2),imshow(output)
rgb=cat(3,output,output,output);
subplot(1,3,3);
imshow(rbg);

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1 Answer

Answer by Naman Bhaia on 2 May 2019

I think it is saying 'rbg' not found becuase it seems to be a typographical error. Try 'imshow(rgb)' and see if it solves the issue you are facing. I tried running your code and after fixing the last line, it did not throw any other error.

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