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1. 发明授权

US5260804A Image processing apparatus having frame erasure capability 失效
标题翻译：具有帧擦除能力的图像处理装置
公开(公告)号：US5260804A
公开(公告)日：1993-11-09
申请号：US944177
申请日：1992-09-11
申请人： Mitsuo Fukutomi , Katuyuki Kouno
发明人： Mitsuo Fukutomi , Katuyuki Kouno
IPC分类号： G03B27/72 , G03G15/36 , G03G21/00 , G06T11/60 , H04N1/38 , H04N1/387 , H04N1/21 , H04N1/393
CPC分类号： H04N1/3875 , H04N1/38
摘要： An image processing apparatus has an original read unit for reading an image on an original document by a prescan and a copy scan, an image data processing unit for converting original image signals into digital image data signals and for processing the digital image data signals, and an output unit for outputting processed image data. The image processing apparatus further comprises an original detecting unit (3) for reading coordinates data on the original in a prescan mode, and enlargement/reduction processing units (2, 4 to 9) which store the image data read in a copy scan mode into a memory, execute the enlargement/reduction in accordance with the stored image data, whereby the enlargement/reduction processing units (2, 4 to 9) carry out the frame-erasure process by using the original coordinates data. Thereby, an image processing apparatus in which an area to be erased can be flexibly changed, and undesired spaces, which otherwise will be caused by the frame erasure processing, are not created even in a repeat processing or an enlargement/repeat processing.
摘要翻译：图像处理装置具有用于通过预扫描和复印扫描读取原始文档上的图像的原始读取单元，用于将原始图像信号转换为数字图像数据信号并用于处理数字图像数据信号的图像数据处理单元，以及用于输出处理后的图像数据的输出单元。图像处理装置还包括用于以预扫描模式读取原稿上的坐标数据的原始检测单元（3），以及以复制扫描模式读取的图像数据存储的放大/缩小处理单元（2,4至9）存储器，根据存储的图像数据执行放大/缩小，由此放大/缩小处理单元（2,4至9）通过使用原始坐标数据执行帧擦除处理。因此，即使在重复处理或放大/重复处理中也不会产生要被擦除的区域被灵活地改变的图像处理装置，否则将由帧擦除处理引起的不需要的空间。

2. 发明授权

US5245417A Ground fog and ground removing system for image forming apparatus 失效
标题翻译：用于成像设备的地面雾化和地面清除系统
公开(公告)号：US5245417A
公开(公告)日：1993-09-14
申请号：US865248
申请日：1992-04-08
申请人： Yoshiharu Hibi , Katuyuki Kouno , Mitsuo Fukutomi
发明人： Yoshiharu Hibi , Katuyuki Kouno , Mitsuo Fukutomi
IPC分类号： G03G15/01 , H04N1/407 , H04N1/46 , H04N1/60
CPC分类号： H04N1/4095 , H04N1/60
摘要： A ground detection means 10 for detecting the ground level of a document and a data correction means 11 for calculating correction data based on the detected ground level are provided. The ground level of the document is detected by prescanning and the correction data is calculated therefrom so that parameters of color conversion means 2, 3 are changed by the correction data. The correction data is set by approximating the detected ground level with a linear function. As a result of the above construction, the correction data is generated easily to thereby remove ground fog and exclude back-side images of the document. In addition, if the ground level is detected by a lightness signal L* and corrected by the lightness signal L* or a color-separated signal BGR, the correction can be achieved by correcting the parameters of a matrix that converts the color-separated signals B, G, R to a system value (L*a*b*) signal.
摘要翻译：提供用于检测文档的地平面的地面检测装置10和用于基于检测到的地平面计算校正数据的数据校正装置11。通过预扫描检测文档的地平面，并且由此计算校正数据，从而通过校正数据改变颜色转换装置2,3的参数。通过用线性函数近似检测到的地平面来设定校正数据。作为上述结构的结果，容易产生校正数据，从而除去地面雾并排除文件的背面图像。另外，如果由亮度信号L *检测到地电平并且由亮度信号L *或颜色分离信号BGR进行校正，则可以通过校正转换色彩分离信号的矩阵的参数来实现校正 B，G，R到系统值（L * a * b *）信号。

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