| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology which can be applied to various filter operations and by which a memory is efficiently used, in an image processor. <P>SOLUTION: In a RAM 204, four gradation data continuous in a column direction are stored, and those gradation data are held by a flip-flop 205. When fifth gradation data continuous to the four gradation data are supplied to a shift computing element 207e, the corresponding four gradation data are read out of the flip-flop 205. At this time, the storage area of the RAM 204 where the gradation data read out of the flip-flop 205 have been stored is rewritten. Specifically, the second gradation data are written to a storage area where the first gradation data among the four gradation data have been stored and similarly, the third, fourth, and fifth gradation data are written to storage areas where the second, third, and fourth data have been stored. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
