| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem in which a number of line buffers are needed, memory capacity is increased accordingly and the circuitry for correcting bit-map image data is also increased. <P>SOLUTION: Line switching information which depends on scan line curve and an overlap data length to be read that overlaps across a plurality of lines before and after a switching position instructed by line switching information are set in a register 501. If switching to the line above or below is instructed by the line switching information, an address generating unit 502, when reading image data from an image memory 304, updates the read address and read data length of the image memory 304 in accordance with the line switching information and the overlap data length, and reads image data corresponding to a current line and the line above or below the current line in accordance with the updated data. <P>COPYRIGHT: (C)2008,JPO&INPIT |
