发明名称 |
Image binarization method and system |
摘要 |
A binarization method of binarizing an image by extracting lightness (brightness, density) as a feature amount from the image. When a pixel is selected in an image, a sensitivity is added to and/or subtracted from the value concerning the Y value of the selected pixel to set a threshold value range. Next, when another pixel is selected, the sensitivity is added to or subtracted from the value concerning the Y value of the selected pixel and a new threshold value range is set containing the calculation result and the already setup threshold value range. The pixel with the value concerning the Y value of any pixel in the image within the threshold value range is extracted as the same brightness as the selected pixel and the extraction result is displayed. <IMAGE> |
申请公布号 |
EP1030270(A2) |
申请公布日期 |
2000.08.23 |
申请号 |
EP19990116884 |
申请日期 |
1999.09.06 |
申请人 |
KEYENCE CORPORATION |
发明人 |
IKUSHIMA, YASUHISA;SAEKI, KAZUHITO |
分类号 |
H04N1/387;G06K9/38;G06T1/00;G06T5/00;H04N1/40;H04N1/403 |
主分类号 |
H04N1/387 |
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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