I’ve created process that do some tricks on image to look better. One of the steps is to blur hue channel from HSV image. To blur channel I’m using cv::blur.
The problem is that hue is circular, so in some cases when i have 0 and 179 values, blur is giving results around 40-80.
I’ve tried to use Lab, but does not work as good as it works with HSV.

How can I do cv::bulr on hue channel and keep its circular form?