Assigning white pixels to specific locations

2015 2 7
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Say that we have a black image (i.e. zeros) of size 64x64, and say that I want to fill those 3x3 windows pixels in the middle of the image with white (i.e. ones), how can I do that in MATLAB?
Thanks.

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Tapan
Tapan 2015-2-7

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I = zeros(64); I(32:35,32:35)=1;

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Jan
Jan 2015-2-7
32:35 are 4 pixels... I assume the OP can apply the required changes.

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