Removing Chromatic Aberrations
This phenomenon, also called chromatic defects, is caused by rays of light with different wavelengths breaking up in different ways. In practice, this phenomenon is most often represented by a purple, or sometimes green or blue, blurred contour in places with high contrast.
Zoner Photo Studio offers a quite easy-to-use Chromatic Aberration tool for correcting this defect. Just choose the color (you can even choose it directly from the photo using an eyedropper) and the tolerance for correction.

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This project is cofinanced by the European Regional Development Fund