Paper image correction

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HomographyMatrix

Suppose I have this image: image description

How to automatically detect the outher box And Correct the corners of the destination image based on that outher box, so that the image looks like this?

image description

Comments

I am able to detect the outer box perfectly if it is Rotated. But if it has perspective, then the detected Box is different shape than real box.

Tony Henrique (Sep 15 '13)edit

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answered Sep 15 '13

Mostafa Sataki

2529 ●12 ●18 ●48 http://www.7khatcode.com/

You can use this tutorial for automatic perspective correction.

Comments

Thank you, Mostafa! I was almost giving up, search many times with no success, then I asked here and your answer helped me to make it work. That blog that you teached is very nice.

Tony Henrique (Sep 16 '13)edit

You're welcome.