发明名称 |
Image processing apparatus and method |
摘要 |
A minimum coordinate value at least in one direction of a parameter data group including a start point and an end point of a stroke is detected and outline coordinates are generated from the parameter data group by an outline coordinate generator and a minimum coordinate detector. An outline data generator stores range data indicative of a painting range into a predetermined address in an outline buffer on the basis of the outline coordinates and the minimum coordinate value or the maximum coordinate value. An address generator generates a drawing start address and an end address in a bit map memory in accordance with a value based on the minimum coordinate value and the predetermined address and with the range data. A painter paints by writing the same value into all data between the drawing start address and end address in the bit map memory, thereby generating a character pattern at a high speed by a buffer memory of a small capacity.
|
申请公布号 |
US5872574(A) |
申请公布日期 |
1999.02.16 |
申请号 |
US19970866113 |
申请日期 |
1997.05.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HARA, YUJI;YAMAZAKI, TATSUHIKO;OHZU, HAYAO;MINAMI, TOSHIAKI |
分类号 |
B41J2/485;G06F3/153;G06T11/40;G09G5/24;G09G5/36;G09G5/393;(IPC1-7):G06F15/00 |
主分类号 |
B41J2/485 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|