Question
Any one help me how to downsample image in horizontal direction and vertical direction. i used downsample(image,4), it will down sample image in both the direction, but i need to downsample separately for horizontal and vertical.
Expert Answer
Kshitij Singh
PhD Expert
Answered Aug 23, 2026
For grayscale:
Xdown = X(1:2:end,1:2:end);
If it's RGB, keep the third dimension:
Xdown = X(1:2:end,1:2:end,:);
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