Fast Chromatic Aberration Correction with 1D Filters

This article presents an implementation of the chromatic aberration correction technique of Chang et al. [Correction of Axial and Lateral Chromatic Aberration with False Color Filtering, IEEE Transactions on Image Processing, 2013]. This method decomposes aberration correction into a cascade of two 1D filters. The first one locally sharpens the red and blue edges such that they have similar profiles to that of the green channel serving as guiding image throughout restoration. The second one shifts the red and blue corrected edges to the location of the green ones to remove the color fringes. These two successive estimates are ultimately merged into a final prediction, free of most chromatic aberrations. Source Code An implementation of the algorithm, together with an online demo, are available at the associated web page(1). The code is implemented in Cython to accelerate the implementation of the separable filters. The latest version of the code can be found at the Github repository(2).