| 摘要 |
PROBLEM TO BE SOLVED: To treat an object with a transmissivity set up when utilizing plural raster data with different kinds of resolutions and objects as representing target. SOLUTION: When a first kind of object with a transmissivity set up is superposed on a first image portion among drawing results in accordance with a superposition order of some objects, the pixel values of the first image portion and the first kind of object are compounded according to the transmissivity, and a pixel value of high-resolution raster data after superposition is set up. When a second kind of object with a transmissivity set up is superposed on a second image portion which is not the image portion of the first kind of object among drawing results in accordance with the superposition order of some objects, the pixel values of the second image portion and the second kind of object are compounded according to the transmissivity, and a pixel value of low-resolution raster data after superposition is set up. COPYRIGHT: (C)2010,JPO&INPIT |
