remap: how to find the (x,y) in dst given (u,v) in src? [closed]

asked 2015-10-21 04:48:44 -0600

remap function can give you the point (u,v) in the src image when you have point (x,y) in dst image through the map1 and map2 mapping function. I do not know if I have the input (u,v) in the src image, how can I get the corresponding point (x,y) in the dst image??

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Closed for the following reason the question is answered, right answer was accepted by berak
close date 2015-10-25 04:24:45.083290

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answered 2015-10-24 10:51:55 -0600

xzp777
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well, I finally solved it through the model given in the opencv document. I just transform the input point (u,v) in src image as the projection model and get the corresponding point (x,y) in the dst image. However, I assume the distortion to be zero vector and this may be not general. Anyhow, it works when the distortion is regarded as zero vector.