发明名称 |
Gerät zur Optimalbildqualitätsselektion. |
摘要 |
<p>An optimal image-quality selection apparatus includes a quantizer (2) to quantize the image from a scanner. The quantizer outputs video signals (b1, b2) representing the image at different depth levels. Graphic blocks are extracted by extractors (3, 4) and counters (5 - 8) count for each video signal the total number of graphic blocks (e1 and e2) and the number (f1 and f2) of graphics blocks having a predetermined size. Dividers (9, 10) calculate the ratio (f1/e1 and f2/e2 respectively) of the number of graphic blocks having a predetermined size to the number of all graphic blocks of the image for each of the depth levels of colour, and a comparator (11) selects the image having the largest of the ratios as an image of optimal quality.</p> |
申请公布号 |
DE68918603(D1) |
申请公布日期 |
1994.11.10 |
申请号 |
DE1989618603 |
申请日期 |
1989.01.30 |
申请人 |
NEC CORP., TOKIO/TOKYO, JP |
发明人 |
UMEDA, TETSUO, MINATO-KU TOKYO, JP;SUGIURA, FUMIHIKO, MINATO-KU TOKYO, JP |
分类号 |
G06K9/38;(IPC1-7):G06K9/38 |
主分类号 |
G06K9/38 |
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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