公开(公告)号：US08936341B2

公开(公告)日：2015-01-20

申请号：US12964129

申请日：2010-12-09

申请人： Hidetsugu Kagawa ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Ryosuke Iguchi ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Hidetsugu Kagawa ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Ryosuke Iguchi ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J29/393 ,  H04N1/60 ,  B41J2/21

CPC分类号： H04N1/6033 ,  B41J2/2128

摘要： In the present invention, a first calculation unit calculates, based on image data obtained by reading with a reading unit a plurality of patches formed on a printing medium by a plurality of nozzle regions constituting nozzle array of a printing head, respective color specification values of a plurality of correction regions corresponding to a plurality of nozzle regions constituting the nozzle array. Then, a target value setting unit sets, based on the calculated color specification values of the plurality of correction regions, a target color specification value of the patch. Further, a second calculation unit calculates a difference between each of the color specification values of the plurality of correction regions and the target color specification value as a correction amount. After that, based on the correction amount calculated, image data corresponding to an image printed by each of the plurality of nozzle regions are corrected.

摘要翻译： 在本发明中，第一计算单元基于通过利用读取单元读取通过构成打印头的喷嘴阵列的多个喷嘴区域在打印介质上形成的多个贴片而获得的图像数据，计算各个颜色指定值 对应于构成喷嘴阵列的多个喷嘴区域的多个校正区域。 然后，目标值设定单元基于计算出的多个校正区域的颜色指定值来设定贴片的目标颜色指定值。 此外，第二计算单元计算多个校正区域中的每个颜色指定值与目标颜色指定值之间的差作为校正量。 之后，基于计算出的校正量，校正与由多个喷嘴区域中的每一个打印的图像对应的图像数据。

公开(公告)号：US20120081443A1

公开(公告)日：2012-04-05

申请号：US12966837

申请日：2010-12-13

申请人： Mitsuhiro Ono ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Mitsuhiro Ono ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J2/205

CPC分类号： B41J2/2146 ,  H04N1/6038

摘要： In the present invention, joint sections and non-joint sections are formed in nozzle arrays of a plurality of chips arranged in a print head. Correction values for correcting input image data are calculated for reducing color difference caused by variation in the ejection characteristics of the nozzles. In this calculation of correction values, first a first correction value corresponding to first nozzles that form a color measurement area is calculated based on the color measurement value obtained by measuring the color of a discrete color measurement area included in a patch formed by a nozzle array. Next, a second correction value for correcting input image data corresponding to second nozzles of the nozzle array is calculated based on the first correction value. Different complementary processing is used when calculating the second correction value corresponding to a non-joint section, and when calculating the second correction value corresponding to a joint section.

摘要翻译： 在本发明中，在布置在打印头中的多个芯片的喷嘴阵列中形成接合部分和非接合部分。 计算用于校正输入图像数据的校正值，以减少由喷嘴的喷射特性的变化引起的色差。 在该校正值的计算中，首先，基于通过测量包括在由喷嘴阵列形成的贴片中的离散颜色测量区域的颜色而获得的颜色测量值，首先计算与形成颜色测量区域的第一喷嘴对应的第一校正值 。 接下来，基于第一校正值计算用于校正与喷嘴阵列的第二喷嘴相对应的输入图像数据的第二校正值。 在计算对应于非接合部分的第二校正值时，以及当计算与接合部分对应的第二校正值时，使用不同的补充处理。

公开(公告)号：US08953234B2

公开(公告)日：2015-02-10

申请号：US12966743

申请日：2010-12-13

申请人： Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： H04N1/46 ,  H04N1/54 ,  H04N1/60 ,  H04N1/405 ,  G03F3/00 ,  G06K15/02 ,  B41J2/135 ,  B41J2/14 ,  H04N1/401

CPC分类号： H04N1/6033 ,  H04N1/4015 ,  H04N1/6041

摘要： An image processing apparatus is provided that is capable of very accurately and efficiently reducing uneven color caused by variation in ejection characteristics among nozzles that eject ink and that occurs in a color image that is formed by mixing a plurality of different kinds of ink. A patch is printed by ejected ink from a plurality of nozzles, a region is specified so as to perform color correction in a test color image that is printed on a printing medium, a plurality of different color correction processing is performed on color signals that correspond to a color correction region, a plurality of color correction patches are printed, a color correction patch to be used is selected from among the plurality of different color correction patches and table parameters that correspond to the nozzles are created based on the selected color correction processing.

摘要翻译： 提供一种图像处理装置，其能够非常精确和有效地减少由喷射墨水的喷嘴之间的喷射特性的变化引起的不均匀颜色，并且发生在通过混合多种不同种类的油墨而形成的彩色图像中。 通过从多个喷嘴喷射的墨水印刷贴片，指定区域以在打印介质上打印的测试彩色图像中进行颜色校正，对与之对应的颜色信号执行多个不同的颜色校正处理 对于颜色校正区域，打印多个颜色校正斑块，从多个不同颜色校正斑块中选择要使用的颜色校正贴片，并且基于所选择的颜色校正处理创建与喷嘴相对应的表格参数 。

公开(公告)号：US08911048B2

公开(公告)日：2014-12-16

申请号：US12963657

申请日：2010-12-09

申请人： Akitoshi Yamada ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Akitoshi Yamada ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J29/38 ,  B41J2/21

CPC分类号： B41J2/2139

摘要： When printing an image using a plurality of inks, color unevenness caused by variations in ejection characteristics among nozzles is corrected at suitable timings in accordance with change in the color unevenness over time, and favorable image output without noticeably color unevenness is maintained. For this purpose, parameters are prepared, for colors formed by combinations of at least two colors of ink, the parameters being determined so as to reduce differences in coloration on a print medium caused by individual variations in the ejection characteristics of a plurality of nozzles. When printing, a first color signal included in individual pixels is corrected for a second color signal by using the parameters. Information regarding the ejection volume characteristics of a plurality of nozzles is acquired as appropriate, and by estimating changes in coloration from this information, suitable timings for overwriting such parameters are determined.

摘要翻译： 当使用多种油墨打印图像时，根据颜色不均匀随时间的变化在合适的时刻校正由喷嘴之间的喷射特性的变化引起的颜色不均匀性，并且保持良好的图像输出而没有明显的颜色不均匀。 为此，为了通过至少两种颜色的油墨的组合而形成的颜色，准备参数，确定这些参数，以减少由多个喷嘴的喷射特性的各种变化引起的打印介质上的着色差异。 当打印时，通过使用参数来校正包括在各个像素中的第一颜色信号用于第二颜色信号。 关于多个喷嘴的喷射体积特性的信息被适当地获取，并且通过根据该信息估计着色的变化，确定用于重写这些参数的合适的定时。

公开(公告)号：US20120081768A1

公开(公告)日：2012-04-05

申请号：US12966743

申请日：2010-12-13

申请人： Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： G03F3/08

CPC分类号： H04N1/6033 ,  H04N1/4015 ,  H04N1/6041

摘要： An image processing apparatus is provided that is capable of very accurately and efficiently reducing uneven color caused by variation in ejection characteristics among nozzles that eject ink and that occurs in a color image that is formed by mixing a plurality of different kinds of ink. A patch is printed by ejected ink from a plurality of nozzles, a region is specified so as to perform color correction in a test color image that is printed on a printing medium, a plurality of different color correction processing is performed on color signals that correspond to a color correction region, a plurality of color correction patches are printed, a color correction patch to be used is selected from among the plurality of different color correction patches and table parameters that correspond to the nozzles are created based on the selected color correction processing.

摘要翻译： 提供一种图像处理装置，其能够非常精确和有效地减少由喷射墨水的喷嘴之间的喷射特性的变化引起的不均匀颜色，并且发生在通过混合多种不同种类的油墨而形成的彩色图像中。 通过从多个喷嘴喷射的墨水印刷贴片，指定区域以在打印介质上打印的测试彩色图像中进行颜色校正，对与之对应的颜色信号执行多个不同的颜色校正处理 对于颜色校正区域，打印多个颜色校正斑块，从多个不同颜色校正斑块中选择要使用的颜色校正贴片，并且基于所选择的颜色校正处理创建与喷嘴相对应的表格参数 。

公开(公告)号：US20120081441A1

公开(公告)日：2012-04-05

申请号：US12966265

申请日：2010-12-13

申请人： Nobutaka Miyake ,  Ryosuke Iguchi ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Nobutaka Miyake ,  Ryosuke Iguchi ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J2/205 ,  G06K9/03

CPC分类号： H04N1/4015 ,  G06K9/03 ,  H04N1/60 ,  H04N1/6038

摘要： Provided is an image processing apparatus that can accurately and efficiently reduce color unevenness that occurs in a color image, which is formed by color mixture of a plurality of different types of inks, due to a variation in ejection characteristic among nozzles. The inks are respectively ejected from the nozzle arrays to print patches; regions where color correction for test color images should be performed are specified; a different types of color correction processing for color signals corresponding to the color correction regions are performed to print color correction patches; a color correction patch to be used is selected; on the basis of selected color correction processing, a table parameter corresponding to a nozzle is formed; when the plurality of color correction patches are formed, only correction candidate values having larger color differences than a predetermined threshold value in a uniform color space are generated for color signals.

摘要翻译： 提供了一种图像处理装置，其能够精确且有效地减少由于喷嘴之间的喷射特性的变化而由多种不同类型的墨水的混合形成的彩色图像中发生的颜色不均匀。 油墨分别从喷嘴阵列喷出以印刷贴片; 指定应执行测试彩色图像的颜色校正的区域; 执行与颜色校正区域对应的颜色信号的不同类型的颜色校正处理以打印色彩校正斑块; 选择要使用的颜色校正补丁; 基于所选择的颜色校正处理，形成与喷嘴对应的表格参数; 当形成多个颜色校正贴片时，对于颜色信号仅产生在均​​匀颜色空间中具有比预定阈值更大的色差的校正候选值。

公开(公告)号：US09055252B2

公开(公告)日：2015-06-09

申请号：US12966265

申请日：2010-12-13

申请人： Nobutaka Miyake ,  Ryosuke Iguchi ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Nobutaka Miyake ,  Ryosuke Iguchi ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： H04N1/401 ,  G06K9/03 ,  H04N1/60

CPC分类号： H04N1/4015 ,  G06K9/03 ,  H04N1/60 ,  H04N1/6038

摘要： Provided is an image processing apparatus that can accurately and efficiently reduce color unevenness that occurs in a color image, which is formed by color mixture of a plurality of different types of inks, due to a variation in ejection characteristic among nozzles. The inks are respectively ejected from the nozzle arrays to print patches; regions where color correction for test color images should be performed are specified; a different types of color correction processing for color signals corresponding to the color correction regions are performed to print color correction patches; a color correction patch to be used is selected; on the basis of selected color correction processing, a table parameter corresponding to a nozzle is formed; when the plurality of color correction patches are formed, only correction candidate values having larger color differences than a predetermined threshold value in a uniform color space are generated for color signals.

摘要翻译： 提供了一种图像处理装置，其能够精确且有效地减少由于喷嘴之间的喷射特性的变化而由多种不同类型的墨水的混合形成的彩色图像中发生的颜色不均匀。 油墨分别从喷嘴阵列喷出以印刷贴片; 指定应执行测试彩色图像的颜色校正的区域; 执行与颜色校正区域对应的颜色信号的不同类型的颜色校正处理以打印色彩校正斑块; 选择要使用的颜色校正补丁; 基于所选择的颜色校正处理，形成与喷嘴对应的表格参数; 当形成多个颜色校正贴片时，对于颜色信号仅产生在均​​匀颜色空间中具有比预定阈值更大的色差的校正候选值。

公开(公告)号：US20120081442A1

公开(公告)日：2012-04-05

申请号：US12966769

申请日：2010-12-13

申请人： Tohru Ikeda ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Tohru Ikeda ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J2/205

CPC分类号： B41J2/2146 ,  H04N1/6038

摘要： Area information is obtained with respect to a specified color and nozzle position having color unevenness. Then, coordinate information indicating a nozzle position corresponding to the above area information is obtained in a printing head or nozzle array corresponding to an ink color relating to the specified color information. Next, the number of candidate correction values or candidate patches is obtained on the basis of nozzle coordinates obtained corresponding to the area, by referring to a table. In this table, for example, the number of candidate correction values is small at a nozzle position where an effect due to the variations of nozzle ejection characteristics such as a nozzle ejection volume is small and a change direction is constant, and the number of candidate correction values is large at a nozzle position where an effect due to variations of nozzle ejection characteristics is large.

摘要翻译： 获得关于具有颜色不均匀的指定颜色和喷嘴位置的区域信息。 然后，在对应于与指定颜色信息相关的墨水颜色的打印头或喷嘴阵列中获得指示与上述区域信息相对应的喷嘴位置的坐标信息。 接下来，通过参照表格，基于与该区域相对应地获得的喷嘴坐标，获得候选校正值或候选补丁的数量。 在该表中，例如，在喷嘴位置处的候补校正值的数量较少，其中由喷嘴喷射量等喷嘴喷射特性的变化引起的影响小，变化方向恒定，候选的次数 在由于喷嘴喷射特性的变化引起的效果大的喷嘴位置，校正值大。

公开(公告)号：US20120081436A1

公开(公告)日：2012-04-05

申请号：US12963657

申请日：2010-12-09

申请人： Akitoshi Yamada ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Akitoshi Yamada ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J29/38

CPC分类号： B41J2/2139

摘要： When printing an image using a plurality of inks, color unevenness caused by variations in ejection characteristics among nozzles is corrected at suitable timings in accordance with change in the color unevenness over time, and favorable image output without noticeably color unevenness is maintained. For this purpose, parameters are prepared, for colors formed by combinations of at least two colors of ink, the parameters being determined so as to reduce differences in coloration on a print medium caused by individual variations in the ejection characteristics of a plurality of nozzles. When printing, a first color signal included in individual pixels is corrected for a second color signal by using the parameters. Information regarding the ejection volume characteristics of a plurality of nozzles is acquired as appropriate, and by estimating changes in coloration from this information, suitable timings for overwriting such parameters are determined.

摘要翻译： 当使用多种油墨打印图像时，根据颜色不均匀随时间的变化在合适的时刻校正由喷嘴之间的喷射特性的变化引起的颜色不均匀性，并且保持良好的图像输出而没有明显的颜色不均匀。 为此，为了通过至少两种颜色的油墨的组合而形成的颜色，准备参数，确定这些参数，以减少由多个喷嘴的喷射特性的各种变化引起的打印介质上的着色差异。 当打印时，通过使用参数来校正包括在各个像素中的第一颜色信号用于第二颜色信号。 关于多个喷嘴的喷射体积特性的信息被适当地获取，并且通过根据该信息估计着色的变化，确定用于重写这些参数的合适的定时。

公开(公告)号：US09162477B2

公开(公告)日：2015-10-20

申请号：US12966769

申请日：2010-12-13

申请人： Tohru Ikeda ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

发明人： Tohru Ikeda ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC分类号： B41J2/205 ,  B41J2/21 ,  H04N1/60

CPC分类号： B41J2/2146 ,  H04N1/6038

摘要： Area information is obtained with respect to a specified color and nozzle position having color unevenness. Then, coordinate information indicating a nozzle position corresponding to the above area information is obtained in a printing head or nozzle array corresponding to an ink color relating to the specified color information. Next, the number of candidate correction values or candidate patches is obtained on the basis of nozzle coordinates obtained corresponding to the area, by referring to a table. In this table, for example, the number of candidate correction values is small at a nozzle position where an effect due to the variations of nozzle ejection characteristics such as a nozzle ejection volume is small and a change direction is constant, and the number of candidate correction values is large at a nozzle position where an effect due to variations of nozzle ejection characteristics is large.

摘要翻译： 获得关于具有颜色不均匀的指定颜色和喷嘴位置的区域信息。 然后，在对应于与指定颜色信息相关的墨水颜色的打印头或喷嘴阵列中获得指示与上述区域信息相对应的喷嘴位置的坐标信息。 接下来，通过参照表格，基于与该区域相对应地获得的喷嘴坐标，获得候选校正值或候选补丁的数量。 在该表中，例如，在喷嘴位置处的候补校正值的数量较少，其中由喷嘴喷射量等喷嘴喷射特性的变化引起的影响小，变化方向恒定，候选的次数 在由于喷嘴喷射特性的变化引起的效果大的喷嘴位置，校正值大。