transform a trapezium into a rectangle

Posted by Phuong Nguyen on Super User See other posts from Super User or by Phuong Nguyen
Published on 2010-03-09T03:00:19Z Indexed on 2010/03/09 3:08 UTC
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image-processing

I use my iPhone to capture a painting. However, the angle was not perfect, so instead of getting a straight rectangle, I get a trapezium. However, I want to transform this trapezium back into a rectangle (using some affine transformation). However, I cannot find a good way to do it. Please advice.

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transform a trapezium into a rectangle - Developer IT

transform a trapezium into a rectangle

image-processing

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