What are the differences in the transformations?

asked 2015-02-11 08:39:20 -0500

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I am relatively new to OpenCV and do not have any knowledge about the math that goes into transforms. I am aware of the different transform functionalities available in OpenCV, but do not quite understand the differences between them and when to use them.

For example: Functions like prespectiveTransform( ), warpPerspective( ), warpAffine( ), getPerspectiveTransform( ), getAffineTransform( ), findHomography( ).

Can anyone help me understand the differences between these methods? Any help is appreciated.

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