Drag the Feather slider to adjust the softening effect around the edge of the crop. This can improve the appearance of your output image.
The higher the value, the wider the area over which softening is applied.
Drag the Smoothness slider to refine the crop outline, removing sharp edges and simplifying the contours.
Lower values will produce results that more closely resemble the original image; higher values may be more aesthetically pleasing.
Drag the Inflate slider to adjust the crop outline, moving it inward or outward.
This adjustment is particularly useful if the image edges include hair or fur, which usually also incorporate some of the background colour.