公开(公告)号：US08040569B2

公开(公告)日：2011-10-18

申请号：US11773716

申请日：2007-07-05

申请人： Yusuke Hashii ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Arata Miyagi

发明人： Yusuke Hashii ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Arata Miyagi

IPC分类号： G06T5/00

CPC分类号： H04N1/4072 ,  H04N1/4092

摘要： This invention allows printing an image with less image deterioration with respect to a document including both text and an image. An image processing apparatus includes a pixel value acquisition unit which acquires a pixel value of a pixel as a target in an input digital image, and a pixel value correction/modification processing unit which executes a correction/modification process based on the pixel value of the pixel acquired by the pixel value acquisition unit. The pixel value correction/modification processing unit includes a contrast correcting unit which executes contrast correction based on information representing a brightness value corresponding to the pixel value of the pixel, and an intermediate color removing unit which removes intermediate color in the digital image by replacing the pixel value of the pixel by pixel values of pixels around that pixel.

摘要翻译： 本发明允许相对于包括文本和图像的文档打印具有较少图像劣化的图像。 图像处理装置包括：像素值获取单元，其获取输入数字图像中的像素的像素值作为目标;以及像素值校正/修改处理单元，其基于所述像素值的像素值执行校正/修改处理 像素值获取单元获取的像素。 像素值校正/修正处理单元包括对比度校正单元，其基于表示与像素的像素值对应的亮度值的信息执行对比度校正，以及中间颜色去除单元，其通过将数字图像中的中间颜色替换 该像素周围像素的像素值的像素值。

公开(公告)号：US20110141176A1

公开(公告)日：2011-06-16

申请号：US12955418

申请日：2010-11-29

申请人： Fumitaka Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Rie Kajihara ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani

发明人： Fumitaka Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Rie Kajihara ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani

IPC分类号： B41J29/38

CPC分类号： H04N1/405

摘要： In image processing it is possible to adequately reduce density unevenness and graininess according to the duty of the image data. More specifically, when dividing multi-valued data and generating 2-pass multi-pass printing data, in addition to the divided multi-valued data for each of the two passes, divided multi-valued data that is common to both of the two passes is also generated. Moreover, the quantized data of that common multi-valued data is reflected on the quantized data of each pass. Furthermore, when generating quantized data, the division ratio when generating common data in the division of multi-valued data is set according to the duty (gradation value) of the multi-valued data. By doing so it becomes possible to adequately reduce the density unevenness and graininess according to the duty of the image data.

摘要翻译： 在图像处理中，可以根据图像数据的占空比充分地减小浓度不均匀性和颗粒性。 更具体地说，在分割多值数据并生成2遍多遍打印数据时，除了两次通过中的每一个的分割多值数据之外，还分两个通过的二值数据 也产生。 此外，该通用多值数据的量化数据反映在每次通过的量化数据上。 此外，当生成量化数据时，根据多值数据的占空比（灰度值）来设定在多值数据的分割中生成公用数据时的分割比。 通过这样做，可以根据图像数据的占空比充分地减小浓度不均匀性和颗粒性。

公开(公告)号：US07912280B2

公开(公告)日：2011-03-22

申请号：US11769801

申请日：2007-06-28

申请人： Arata Miyagi ,  Fumitaka Goto ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Mitsuhiro Ono ,  Yusuke Hashii

发明人： Arata Miyagi ,  Fumitaka Goto ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Mitsuhiro Ono ,  Yusuke Hashii

IPC分类号： G06K9/00 ,  G06K9/40

CPC分类号： H04N1/58 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10008 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20192 ,  G06T2207/30176

摘要： There is provided an image processing apparatus for applying an adjusting process to an image including multicolor image signals. An image area including a pixel to be processed is extracted, and one representative signal value is generated from signal values corresponding to a plurality of colors of pixels included in the image area (S2501). A feature amount associated with the image area is calculated based on the representative signal value (S2503, S2505, S2511), and a substitute candidate pixel common to the plurality of colors is selected from the image area based on the calculated feature amount (S2512). Signal values of the pixel to be processed are substituted by new pixel values, which are calculated from the signal values of the pixel to be processed and signal values of the substitute candidate pixel.

摘要翻译： 提供了一种用于对包括多色图像信号的图像应用调整处理的图像处理装置。 提取包括要处理的像素的图像区域，并且从对应于包括在图像区域中的多个像素颜色的信号值生成一个代表信号值（S2501）。 基于代表信号值计算与图像区域相关联的特征量（S2503，S2505，S2511），并且基于所计算的特征量从图像区域中选择与多种颜色共同的替代候选像素（S2512） 。 要处理的像素的信号值被新的像素值代替，其由要处理的像素的信号值和替代候选像素的信号值计算。

公开(公告)号：US08610955B2

公开(公告)日：2013-12-17

申请号：US12955344

申请日：2010-11-29

申请人： Fumitaka Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Rie Kajihara ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani

发明人： Fumitaka Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Rie Kajihara ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani

IPC分类号： H04N1/40 ,  G06F15/00

CPC分类号： H04N1/52 ,  G06K15/107

摘要： In image processing, it is possible to suitably reduce density unevenness and graininess according to the ink used in printing. More specifically, when dividing multi-valued data and generating data for 2-pass multi-pass printing, in addition to divided multi-valued data for each of the two passes, divided multi-valued data that is common to the two passes is also generated. Moreover, quantized data of that common multi-valued data is reflected on the quantized data for each of the passes. Furthermore, when generating the quantized data, the division ratios used when generating the common data using the aforementioned multi-valued data division are set according to the colors of ink used in printing. By doing so, it becomes possible to suitably reduce density unevenness and graininess according to the colors used in printing.

摘要翻译： 在图像处理中，可以根据印刷中使用的油墨适当地减小浓度不均匀性和颗粒性。 更具体地说，当分割多值数据并产生用于2遍多遍打印的数据时，除了两次通过中的每一个的分割多值数据之外，还可以将两次通过的共同的分割多值数据 生成。 此外，该通用多值数据的量化数据反映在每个通过的量化数据上。 此外，当生成量化数据时，根据在打印中使用的墨的颜色来设定使用上述多值数据分割生成公共数据时使用的分割比。 通过这样做，可以根据印刷中使用的颜色适当地减小浓度不均匀性和颗粒性。

公开(公告)号：US08540345B2

公开(公告)日：2013-09-24

申请号：US12965707

申请日：2010-12-10

申请人： Yugo Mochizuki ,  Akitoshi Yamada ,  Fumitaka Goto ,  Tomokazu Ishikawa ,  Takashi Nakamura ,  Okinori Tsuchiya ,  Akihiko Nakatani ,  Mitsuhiro Ono ,  Ayumi Sano ,  Takashi Fujita ,  Hidetsugu Kagawa ,  Fumihiro Goto

发明人： Yugo Mochizuki ,  Akitoshi Yamada ,  Fumitaka Goto ,  Tomokazu Ishikawa ,  Takashi Nakamura ,  Okinori Tsuchiya ,  Akihiko Nakatani ,  Mitsuhiro Ono ,  Ayumi Sano ,  Takashi Fujita ,  Hidetsugu Kagawa ,  Fumihiro Goto

IPC分类号： B41J2/155

CPC分类号： B41J2/2132

摘要： When a gradation mask is used to distribute image data to be recorded by overlapping portions in an overlapping head, color unevenness is generated in an image recorded by the overlapping portions due to a displacement in impact positions caused by an assembly error. As a result, accurate colorimetric measurement of patches recorded by the overlapping portion cannot be performed. To solve such a problem, a distribution ratio by which the image data is distributed to the overlapping portions is set to be approximately constant when recording a test pattern for performing color correction, as compared to when normally recording the image.

摘要翻译： 当使用渐变掩模来分配由重叠头部中的重叠部分记录的图像数据时，由于由组装误差引起的冲击位置的位移，在由重叠部分记录的图像中产生颜色不均匀。 结果，不能执行由重叠部分记录的贴片的精确比色测量。 为了解决这种问题，与正常记录图像时相比，当记录用于执行颜色校正的测试图案时，将图像数据分配给重叠部分的分配比设置为近似恒定。

公开(公告)号：US08405876B2

公开(公告)日：2013-03-26

申请号：US12813837

申请日：2010-06-11

申请人： Akihiko Nakatani ,  Fumihiro Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Okinori Tsuchiya ,  Fumitaka Goto ,  Takashi Fujita ,  Rie Kajihara ,  Ayumi Sano ,  Tomokazu Ishikawa

发明人： Akihiko Nakatani ,  Fumihiro Goto ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Okinori Tsuchiya ,  Fumitaka Goto ,  Takashi Fujita ,  Rie Kajihara ,  Ayumi Sano ,  Tomokazu Ishikawa

IPC分类号： G06K15/10 ,  G06K15/00 ,  H04N1/40

CPC分类号： G06K15/107

摘要： When multi-pass printing is performed, the dot overlap rate (ratio of the number of dots that overlap and are to be printed in the same pixel area by the plurality of relative movements with respect to the total number of dots to be printed in a pixel area by the plurality of relative movements) in pixel areas having medium-density where density unevenness caused by density fluctuation easily stands out is made higher than the dot overlap rate in pixel areas having low-density and pixel areas having high-density. By doing so density unevenness caused by density fluctuation is suppressed. In addition, the dot overlap rate in pixel areas having low-density and pixel areas having high-density is low, so it is possible to reduce graininess in low-density areas and suppress a decrease in density in high-density areas.

摘要翻译： 当进行多遍打印时，点重叠率（通过多个相对移动相对于要印刷的总点数在同一像素区域中重叠并且要打印的点数的比率 在具有中密度的像素区域中，由密度波动引起的浓度不均匀性容易突出的像素区域的像素区域高于具有高密度的低密度像素区域和像素区域的像素区域中的点重叠率。 通过这样做，抑制了由密度波动引起的密度不均匀。 此外，具有低密度的像素区域和具有高密度的像素区域的点重叠率低，因此可以降低低密度区域的颗粒度并抑制高密度区域的密度降低。

公开(公告)号：US08243351B2

公开(公告)日：2012-08-14

申请号：US12339052

申请日：2008-12-19

申请人： Akitoshi Yamada ,  Tohru Ikeda ,  Hidetsugu Kagawa ,  Fumihiro Goto ,  Takashi Nakamura

发明人： Akitoshi Yamada ,  Tohru Ikeda ,  Hidetsugu Kagawa ,  Fumihiro Goto ,  Takashi Nakamura

IPC分类号： G03F3/08

CPC分类号： H04N1/484 ,  H04N1/4076

摘要： This invention is directed to a method capable of performing satisfactory image reading by absorbing variations in each apparatus. According to this method, in primary color reading, light emitting unit sequentially irradiates an image original with light components of three primary colors and reads the image original, and in complementary color reading, the light emitting unit simultaneously irradiates the image original with one of three different color combinations, which includes two of the light components of three primary colors, and reads the image original. Each of the primary and complementary color readings includes image processing of executing shading correction of image data based on calibration data obtained by calibrating the light emitting unit when reading the image original.

摘要翻译： 本发明涉及能够通过吸收每种装置中的变化来执行令人满意的图像读取的方法。 根据该方法，在原色读取中，发光单元顺序地照射具有三原色的光分量的图像原稿并读取图像原稿，并且在补色读取中，发光单元同时用三个中的一个照射图像原件 不同的颜色组合，包括三原色的两个光分量，并读取图像原稿。 主要和补充颜色读取中的每一个包括基于当读取图像原件时通过校准发光单元获得的校准数据来执行图像数据的阴影校正的图像处理。

公开(公告)号：US20110149305A1

公开(公告)日：2011-06-23

申请号：US12966135

申请日：2010-12-13

申请人： Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Rie Kajihara

发明人： Takashi Fujita ,  Fumihiro Goto ,  Shigeyasu Nagoshi ,  Akihiko Nakatani ,  Okinori Tsuchiya ,  Ayumi Sano ,  Tomokazu Ishikawa ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Rie Kajihara

IPC分类号： G06K15/02

CPC分类号： G06K15/107

摘要： In image processing, it is possible to suppress density fluctuation and keep graininess low as well as obtain a good balance of the processing load. More specifically, when dividing multi-valued data and generating two-pass multi-pass printing data, divided multi-valued data that is common to the two passes is generated in addition to the divided multi-valued data for each of the two passes. Moreover, quantized data of that common multi-valued data is reflected on the quantized data for each pass. Furthermore, when generating quantized data, a process of generating common data by the aforementioned data division, or a process of performing quantization first without dividing the multi-valued data and then dividing the quantized 2-pass data is selectively performed according to the printing position on printing medium.

摘要翻译： 在图像处理中，也可以抑制密度波动，保持颗粒度低，同时获得良好的处理负荷平衡。 更具体地说，在划分多值数据并生成双通多遍打印数据时，除了两次通过中的每一个的分割多值数据之外，还生成与两次通过相同的分割多值数据。 此外，该通用多值数据的量化数据反映在每次通过的量化数据上。 此外，当生成量化数据时，根据打印位置选择性地执行通过上述数据分割产生公共数据的处理或首先执行量化的处理而不分割多值数据，然后除以量化的2遍数据 在打印介质上。

公开(公告)号：US20090161138A1

公开(公告)日：2009-06-25

申请号：US12339040

申请日：2008-12-19

申请人： Takashi Nakamura ,  Fumihiro Goto ,  Tohru Ikeda ,  Akitoshi Yamada ,  Hidetsugu Kagawa

发明人： Takashi Nakamura ,  Fumihiro Goto ,  Tohru Ikeda ,  Akitoshi Yamada ,  Hidetsugu Kagawa

IPC分类号： G06F3/12

CPC分类号： H04N1/484 ,  H04N1/6027 ,  H04N1/6094

摘要： This invention is directed to a method capable of performing appropriate under color removal in image original reading. According to this method, under color removal of the original is performed as follows. A printing medium without any printed image is read by primary and complementary color readings. A brightness signal distribution is generated by converting, using a provisional table, each of image data generated by the reading methods. The lowest one of signal levels is selected from each of the distributions. In correspondence with each of the primary and complementary color readings, a conversion table is formed, which converts the image data to make a pixel value corresponding to the selected lowest one of the signal levels to a value representing white. Under color removal of the image data is performed using a corresponding conversion table in accordance with the reading method of the image original.

摘要翻译： 本发明涉及一种能够在图像原始阅读中执行适当的底色去除的方法。 根据该方法，原稿的脱色如下进行。 没有任何打印图像的打印介质通过主色和补色读数读取。 通过使用临时表转换通过读取方法生成的每个图像数据来生成亮度信号分布。 从每个分布中选择最低的一个信号电平。 对应于主要和补充颜色读数中的每一个，形成转换表，其转换图像数据以使对应于所选择的最低信号电平的像素值为代表白色的值。 根据图像原稿的读取方法，使用相应的转换表执行图像数据的颜色去除。

公开(公告)号：US20080123150A1

公开(公告)日：2008-05-29

申请号：US11771168

申请日：2007-06-29

申请人： Mitsuhiro Ono ,  Fumitaka Goto ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Yusuke Hashii ,  Arata Miyagi

发明人： Mitsuhiro Ono ,  Fumitaka Goto ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Yusuke Hashii ,  Arata Miyagi

IPC分类号： G06K15/00

CPC分类号： H04N1/2307 ,  H04N1/2323 ,  H04N1/4092

摘要： In order to eliminate image deterioration based on the characteristics of an output device upon execution of edge emphasis processing, an image processing apparatus includes a setting unit which sets a print characteristic on the print medium, a region setting unit which sets a region, a brightness value derivation unit which derives brightness values, a first derivative derivation which derives first derivatives of the brightness values, an edge direction determination unit which determines an edge direction of brightness, an emphasis level determination unit which determines an emphasis level of a pixel value based on the first derivatives, and a replacement unit which calculates second derivatives of brightness values and replaces a pixel value of a pixel of interest based on the sign of the second derivative.

摘要翻译： 为了在执行边缘加重处理时消除基于输出装置的特性的图像劣化，图像处理装置包括设置单元，其设置打印介质上的打印特性，设置区域的区域设置单元，亮度 导出亮度值的值导出单元，导出亮度值的一阶导数的一阶导数导出，确定亮度的边缘方向的边缘方向确定单元，基于以下步骤确定像素值的强调级别的强调级别确定单元： 第一导数，以及替换单元，其基于二次导数的符号来计算亮度值的二阶导数并替换感兴趣像素的像素值。