How do I rotate each block of image to be perpendicular to x-axis?

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Klara
Klara 2014-3-11
评论： Image Analyst 2014-3-13
For each block of a fingerprint image, the local orientation is measured. I tried to rotate gradients by their mean orientation but it looks same as gradients and not perpendicular to x-axis.

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Image Analyst
Image Analyst 2014-3-11
You could use imrotate() on the block, or use various combinations of transpose (the ' operator), flipud(), and fliplr().
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Klara
Klara 2014-3-13
编辑：Klara 2014-3-13
Thanks. Reminding that I don't have Image Processing Toolbox, then is is possible to rotate it based on Rotation matrix?

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