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How can I change the pixel value of central row and column of an image?

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Shakir Ishaq
Shakir Ishaq 2018-5-2
评论： Shakir Ishaq 2018-5-2
I have already used one method but I want to use another method without using "for loop". My code is...
a = imread('pic.jpg');
[r,c]=size(a);
centerRow = round(r/2);
centerColumn = round(c/2);
for i=1:r
for j=1:c
if(i==centerRow || j==centerColumn)
a(i,j) =255;
end
end
end
imshow(a);

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回答（1 个）

KSSV
KSSV 2018-5-2
编辑：KSSV 2018-5-2
for loop is not required........
a = imread('pic.jpg');
[r,c]=size(a);
centerRow = round(r/2);
centerColumn = round(c/2);
a(centerRow,centerColumn,:) =255;
imshow(a);

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