can anyone give the recover image rotation code?
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anika hossain
el 5 de Sept. de 2015
Comentada: Image Analyst
el 12 de Abr. de 2016
I need to recover an rotated image. I found the solution in MATLAB solution:
but I am not able to use it. It would be helpful if anyone could provide the code.
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Image Analyst
el 5 de Sept. de 2015
Editada: Image Analyst
el 5 de Sept. de 2015
If all you have is a final, rotated image, and no original image to compare it to, then obviously there is no way to find out how much your only image was rotated, or even if it was rotated. Rotation has to be compared to something.
Look at this image.
![](/matlabcentral/answers/uploaded_files/36667/It's%20not%20a%20bug%20-%20it's%20a%20feature.bmp)
Now, if I tell you it's rotated, but don't tell you anything else, can you tell me how much it was rotated?
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Image Analyst
el 5 de Sept. de 2015
You can use imrotate() if you know the angle. If you don't know the angle you'll have to figure it out - it's not hard, just the arctangent of the ratio of the length of the two black triangle sides.
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