Question

matlab

Complete the code snippet to create an image that is 32 pixels wide and 32 pixels tall with a blue X on a black background. (The X is just a diagonal line from the top-left to bottom-right corner and a diagonal line from the top-right to bottom-left corner)

Answer 1

Code-

%create black image of 32x32 with 3 color channels
img = zeros(32, 32, 3, 'uint8');

% loop over each row
for i = 1:32
   % set 3rd channel, blue, at required pixels as 255
   img(i, i, 3) = 255;
   img(33-i, i, 3) = 255;
endfor

%show image
imshow(img);

%create black image of 32x32 with 3 color channels img = zeros(32, 32, 3, 'uint8'); 600 vu WN 4 % loop over each row 5 afor i = 1:32 % set 3rd channel, blue, at required pixels as 255 img(i, i, 3) = 255; img (33-i, i, 3) = 255; endfor %show image imshow(img); 12

OUTPUT-

$1585640136650_image.png$

I hope it helps. For any doubt, feel free to ask in comments, and give upvote if u get the answer.