Patent ID: 7236645

Claim:
An image synthesizing apparatus comprising: input means for inputting image data including a value of an opaqueness degree; area setting means for setting a rewriting range of said opaqueness degree in a desired shape in a desired position and generating an area setting signal when a present position of said inputted image data enters said set rewriting range; opaqueness degree rewriting means for rewriting a value of the opaqueness degree of said inputted image data to a desired value while said area setting signal is being generated; and synthesizing means for synthesizing said inputted image data in which said opaqueness degree has been rewritten in said desired shape in said desired position and outputting second image data in accordance with the value of said rewritten opaqueness degree; wherein said inputted image data have priorities and wherein said inputted image data is synthesized using the value of said rewritten opaqueness degree of the inputted image having a higher priority.