Emphasize edges in an image.<br><br><a href="http://wiki.rw-designer.com/Raster_Image_-_Unsharp_Mask">More information</a>.
679
Emphasize the border between transparent and filled regions by a contour.
680
Emphasize the border between transparent and filled regions by a contour.<br><br><a href="http://www.rw-designer.com/outline-effect">More information</a>.