发明名称 Image processing device
摘要 <p>An image processing device has a main unit, a storage unit, a first processing unit, a second processing unit, a first determination unit, and a first replacement unit. The storage unit is provided in the main unit that stores a color image having ground color and different color from the ground color, the color image being formed by color-pixels including a ground color pixel and a different color pixel, the ground color pixel having the ground color, the different color pixel having the different color. The first processing unit scales down the color image to produce a first gray-scale image which is simply represented by brightness having a plurality of brightness values, the first gray-scale image being formed by first gray-scale pixels. The second processing unit determines the brightness value of each of the color pixels to produce a histogram showing a distribution of the color pixels with respect to the brightness. The first determination unit determines a first threshold level based on the histogram to distinguish the ground color pixel from the different color pixel. The first replacement unit compares the brightness value of at least one of the color pixels with the first threshold level to detect the ground color pixel, the first replacement unit replacing the detected ground color pixel with a white color pixel to produce a processed color image, the white color pixel having white color.</p>
申请公布号 EP1936951(B1) 申请公布日期 2013.08.07
申请号 EP20070254976 申请日期 2007.12.20
申请人 BROTHER KOGYO KABUSHIKI KAISHA 发明人 MIZUTANI, SHUNSUKE
分类号 H04N1/407;G06T5/40 主分类号 H04N1/407
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