You can apply almost every effect not only on full image or some selected ROI, but through free hand brush movement or through some shape. Choose among various brush types and customize its parameters to obtain desired effect. Use 3D brush effect to simulate various color thickness while performing some action. 3D effect is created Using bum map technique. Perform various free hand retouch actions.
Some retouch actions are also very suitable for autobrush technique.
This technique, together with contour clipping can emulate various painting techniques. Autobrush technique uses free hand jittering values to give very interesting and amazing results. Various linear, nonlinear, boolean and morphological filters are introduced. You can apply those filters on complete image or through some stroke or shape. You can also create your own filters and save them for future use.