Patent ID: 7542173
Filing Date: 2009-06-02
Classification: G06T,H04N

Abstract:
1. A computer readable medium storing an image processing program for causing a computer to execute an image processing procedure to generate image data expanded into pixels of an image output device from a rendering record, wherein the image processing procedure comprises: a procedure to generate second image data expanded into the pixels of the image output device by enlarging first image data expanded into pixels and contained in the rendering record; and a compression procedure that compresses the second image data; and the procedure to generate the second image data comprises an interpolation processing in which, when the difference in the luminance-related value of the image data between adjacent pixels of the first image data, which includes a plurality of pixels adjacent to position corresponding with a pixel position of the second image data, is equal to or less than a predetermined threshold value, which is greater than zero, for all combinations of the adjacent two pixels, the image data of the pixel of the second image data is rendered to the image data of any one of the adjacent pixels of the first image data; and when the difference exceeds the predetermined threshold value, the image data of the pixel of the second image data is rendered to image data that is generated from the image data of the adjacent pixels of the first image data by means of an interpolation calculation.