Interactive Object Contour Detection Algorithm for Touchscreens Application

摘要

In a method for use in an apparatus displaying an image, an object in the image at least partially marked by a mask is highlighted. Successive selection points located on a line crossing a boundary of the mask represent a path input by a user using continuous movements and correspond to respective reference pixels in the image. An initial reference point where the line crosses the boundary is used as a seed point to successively change an attribute of successive points in the mask centered on the seed point for all mask points corresponding to image pixels surrounding the respective reference pixel and for each of which points the corresponding pixel attribute differs from that of the corresponding reference pixel in the image by no more than a predetermined threshold.