| 摘要 |
PURPOSE:To shorten the correcting time by permitting a read, modify and write circuit to correct an original picture. CONSTITUTION:Corrected picture data DB0-DB3, mask data MD0-MD3 and correction indicating data S0-S2 are inputted to the read, modify and write circuit 103, which fetches original picture data OR0-OR3 is synchronizing with a CLK impressed from a display control part 101 and executes the correction by using the correction data DB and the original picture data OR0-OR3. Then the corrected picture data OR0'-OR3' are written in a screen memory 102 and displayed on a CRT 105. |
