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How to draw inscribed rectangle in fish eye corrected image using opencv?

How to draw inscribed rectangle in fish eye corrected image using opencv?

How to draw inscribed rectangle in fish eye corrected image using opencv?

This is the fish eye corrected image: image description

This is what I need to crop the image: Either the 4 corner points of the rectangle or the midpoints of the sides.

image description

Final manually corrected image:

image description

How to draw inscribed rectangle in fish eye corrected image using opencv?

How to draw inscribed rectangle in fish eye corrected image using opencv?

How to draw inscribed rectangle in fish eye corrected image using opencv?Original image:

image description

This is the fish eye corrected image: image description

This is what I need to crop the image: Either the 4 corner points of the rectangle or the midpoints of the sides.

image description

Final manually corrected image:

image description