How to generate image matrix Red Green Blue Yellow Green
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Generate the following image by defining image matrix:
Red Green Blue Yellow Green.
B(1:100,1:100,1:100,1:00,1:3)=0;
imshow (B)
B(1:50,1:50,1) =1;
B(51:100,51:100,2)=1;
imshow(B)
I am trying to get a 3x3 with the specified colors; Red Green Blue Yellow Green. It's not working, it gives error.
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Answers (2)
Image Analyst
on 19 Nov 2012
Is this what you're looking for:
redChannel = zeros(100, 100, 'uint8');
greenChannel = zeros(100, 100, 'uint8');
blueChannel = zeros(100, 100, 'uint8');
redChannel(1:50,:) = 255;
greenChannel(:, 1:50) = 255;
blueChannel(51:100, 51:100) = 255;
coloredImage = cat(3, redChannel, greenChannel, blueChannel);
imshow(coloredImage)
6 Comments
Cesar
on 2 Feb 2013
Edited: Walter Roberson
on 2 Feb 2013
Can you please complete it to create the 3 X 3 image:
Red Yellow
Green
Green Blue
Image Analyst
on 2 Feb 2013
Cesar, you can see my solution and the modifications to it to do what you want should be straightforward. Just change the row and column ranges.
Walter Roberson
on 19 Nov 2012
B(1:100,1:100,1:100,1:00,1:3)=0 tries to define a 5 dimensional array in which the fourth dimension is empty. 1:00 is empty. Perhaps you meant 1:100 .
RGB matrices are 3 dimensional.
You may wish to use zeros() to initialize the matrix.
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