US 6,983,081 B2
Method for integration of source object into base image
Aubrey Kuang-Yu Chen, Taipei (Taiwan)
Assigned to Ulead Systems, Inc., Taipei (Taiwan)
Filed on Aug. 23, 2002, as Appl. No. 10/226,120.
Prior Publication US 2004/0037476 A1, Feb. 26, 2004
Int. Cl. G06K 9/36 (2006.01)
U.S. Cl. 382—284 12 Claims
OG exemplary drawing
 
1. A method for integration of a source object into a base image with an area overlapping the source object, the method comprising the steps of:
identifying similar border pixels, that is, pixels on two sides of a border between the source object and the base image having differences from each other smaller than a first threshold;
calculating characteristic values of the similar border pixels in the source object and the base image using an energy function;
creating a tonal map using the characteristic values;
dividing the source object and the overlapped area in the base image into regions by segmentation filtering;
identifying similar regions in the source object, each of which, in the characteristic values, has a difference smaller than a second threshold from the similar border pixels in the source object and has a difference smaller than a third threshold from one of the regions in the overlapped area having a difference smaller than a fourth threshold from the similar border pixels in the overlapped area; and
applying the tonal map to the similar regions in the source object.