zoom(M, hscale, vscale)—Returns matrix M resized by factor hscale horizontally and vscale vertically.
M is an image matrix.
hscale, vscale are positive, nonzero real numbers representing the horizontal and vertical scales for zooming.
Additional Information
The function returns the scaled image, which is a different size matrix from the input.
It is recommended to avoid the use of excessively large values for hscale or vscale, because of unreasonable computation times and display problems.
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