improve rotated image.....

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mohd
mohd le 4 Mar 2012
hello.. how to improve rotated image to become unrotated image. this is example of rotated image.
http://i1259.photobucket.com/albums/ii548/msaiful89/2.jpg

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Image Analyst
Image Analyst le 4 Mar 2012
Determine angle of rotation by finding squares. Then call imrotate().
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Image Analyst
Image Analyst le 4 Mar 2012
Threshold to find dark regions, use regionprops, filter on size and perimeter^2/(4*pi*area) to detect squares of the right size. Then think a little bit about how to find angles. There are probably several ways, like maybe hough() or houghlines()???? Or use area of square and area of bounding box. Or use the corner() function. Try some. Experiment and have fun. Shouldn't be too hard.
mohd
mohd le 7 Mar 2012
ok thanks alot..:)

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