CGFMirror

This plugin performs an algorithm of horizontal mirrored reflection. The mask channel is required to be specified(0 - outside the mask). The left and right borders of the mask are determined on the x ordinate thus finding the center. The left side of the mask is reverse-copied against its' outer border and the right side against its'. If the reflection of a pixel inside of the mask is beyond the frame, the pixel remains unchanged. Plugin works with masks of any complex shapes.