Graphics data treatment manner, the graphics data central processing unit, image display manner, it is laid out in the image display device, and

摘要

PROBLEM TO BE SOLVED: To more quickly complete rearrangement than the next scanning of an electron beam by use of the same memory area as a memory area storing image data without newly adding a large-size memory to perform the high-speed rearrangement.;SOLUTION: When obtaining a rotation extension image rotated at 45 degrees to an original image and extended to an n×n orthogonal matrix by taking out pixels disposed in a square area inscribed in an outline of the original image and inclined at 45 degrees to the original image from the original image having a square outline, disposed in the n×n orthogonal matrix and performing the rearrangement, each pixel data forming the original image are disposed inside an n×n memory space added with an address corresponding to each the pixel data, and the rotation extension image is rearranged in the memory space.;COPYRIGHT: (C)2008,JPO&INPIT