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Barrel distortion removal can be considered as remapping a given pixel (x,y) from the original image f into a image g, by a function h(x,y), where the mapping function is the one used by ImageMagick (which you can see here ).

In OpenCV, there is the function cv::remap where you give two mapping images for the x and y coordinates, with the desired interpolating function (nearest neighbour, bilinear, etc.). There is a pretty good tutorial in the OpenCV here showing how you can generate custom maps for remapping of images. Instead translation/rotation in the example you should use the ImageMagick equations, with the parameters that you use.

I hope that this helps.

Barrel distortion removal can be considered as remapping a given pixel (x,y) from the original image f into a image g, by a function h(x,y), where the mapping function is the one used by ImageMagick (which you can see here ).

In OpenCV, there is the function cv::remap where you give two mapping images for the x and y coordinates, with the desired interpolating function (nearest neighbour, bilinear, etc.). There is a pretty good tutorial in the OpenCV documentation here showing how you can generate custom maps for remapping of images. Instead translation/rotation in the example you should use the ImageMagick equations, with the parameters that you use.

I hope that this helps.