发明名称 |
Image encoding apparatus, image encoding method, and image recording medium |
摘要 |
<p>The block reducing unit 201 reads one block out of each block group. The pixel reducing unit 202 reads pixels on one-out-of-four basis. The block reading unit 203 sequentially reads out images. The orthogonal transformation unit 205 performs orthogonal transformation. The quantization unit 206 performs a quantization. The encode amount predicting unit 207 calculates predicted encode amounts. The quantization width calculating unit 208 determines an optimum quantization width. The quantization table generating unit 209 generates an optimum quantization table. The block-assignment encode amount setting unit 210 calculates an encode amount to be assigned to each block. <IMAGE></p> |
申请公布号 |
EP0912062(A2) |
申请公布日期 |
1999.04.28 |
申请号 |
EP19980308641 |
申请日期 |
1998.10.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
KOBAYASHI, YOSHIKAZU |
分类号 |
G06T9/00;H04N1/41;H04N19/126;H04N19/132;H04N19/146;H04N19/176;H04N19/186;H04N19/189;H04N19/60;(IPC1-7):H04N7/30 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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