Image analysis
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Hello everyone Can you please say how to perform rotation undoing of an image? If i have the reference image and rotated image th algorithm find out the rotation angle and perform undoing rotation. Please post your ideas......I need it urgently.........Thanks in advance...............
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Ashish Uthama
le 9 Nov 2011
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Walter Roberson
le 14 Nov 2011
No there is no possibility of overcoming blurring when you rotate a rectangular grid at an angle to a different rectangular grid (except, of course, in the special case of quarter turns on square grids).
There may possibly be algorithms that blur *less* than whichever algorithm is used above, but blur cannot be eliminated.
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