| 发明名称 |
IMAGE PROCESSING APPARATUS |
| 摘要 |
<p>The invention is intended to improve image quality in a process of image coding. In an apparatus for quantizing conversion data resulted from converting image information into frequency regions and then coding the quantized data, a coefficient to be multiplied by a chrominance quantizing matrix is set depending on a coefficient to be multiplied by a luminance quantizing matrix for an improvement in color reproducibility. <IMAGE></p> |
| 申请公布号 |
EP0510921(A3) |
申请公布日期 |
1993.06.09 |
| 申请号 |
EP19920303572 |
申请日期 |
1992.04.22 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
FUJII, AKIO |
| 分类号 |
H03M7/40;G06T9/00;H04N1/41;H04N11/04;H04N11/06;H04N11/24;H04N19/126;H04N19/134;H04N19/192;H04N19/196;H04N19/436;H04N19/60;H04N19/625;H04N19/85;H04N19/91;(IPC1-7):H04N11/04;H04N7/133 |
主分类号 |
H03M7/40 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
