Image synthesizing apparatus and method
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
Abstract
An α value in a desired shape in a desired position can be rewritten to a desired value in a desired range. α value rewriting units for rewriting an α value showing an opaqueness degree of an image are provided. When the desired position comes, an area setting signal is outputted in a desired shape from an area setting signal generating unit. While the area setting signal is being outputted, in the α value rewriting unit, an α value of inputted image data is rewritten to a desired value. The rewriting of the α value can be dynamically realized independent of software. By preparing a quadrangular area calculating unit and a circular area calculating unit as an area setting signal generating unit, a quadrangular area and a circular area can be set by hardware.
-
Citations
12 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An image synthesizing method comprising the steps of:
-
inputting image data including a value of an opaqueness degree; 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; 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 said inputted image data 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 said inputted image data having a higher priority. - View Dependent Claims (8, 9, 10, 11, 12)
-
Specification