How to rotate image using code?

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Pham Viet Thien
Pham Viet Thien 2018-9-24
回答： Image Analyst 2018-9-24
no use imrotate(im,angle)
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Rik
Rik 2018-9-24
Do you mean that doesn't work? Or do you mean you have a homework assignment that tells you to make this?

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Image Analyst
Image Analyst 2018-9-24
Scan the output image. For each row, column location use the Rotation matrix (from Wikipedia) to determine where in the input image the pixel should come from, and assign it.

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