公开(公告)号：US20090168087A1

公开(公告)日：2009-07-02

申请号：US12336978

申请日：2008-12-17

申请人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Tomokazu Yanai

发明人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Tomokazu Yanai

IPC分类号： G06F15/00

CPC分类号： H04N1/4052

摘要： An image forming apparatus and an image forming method are provided which can produce an image with high robustness that can keep image impairments from becoming noticeable even when there are printing characteristic variations over a range of positions of the print elements, as in the case of an end deflection phenomenon. This is realized by distributing multilevel grayscale values of individual pixels according to distribution coefficients determined for the individual print elements that print the pixels, allocating the distributed grayscale values to the associated planes, and binarizing the allocated grayscale values in each plane. With this process, the grayscale value distribution factors in each scan of multipass printing can be determined according to the positions of individual print elements on the print head.

摘要翻译： 提供一种图像形成装置和图像形成方法，其可以产生具有高鲁棒性的图像，即使在打印元件的位置的范围上存在打印特性变化时，也可以使图像损伤变得明显，如在 端偏转现象。 这通过根据为打印像素的各个打印元素确定的分配系数分配各个像素的多级灰度值来实现，将分布式灰度值分配给相关联的平面，并且对每个平面中分配的灰度值进行二值化。 通过该处理，可以根据打印头上的各个打印元件的位置来确定多次打印的每次扫描中的灰度值分布因子。

公开(公告)号：US08520259B2

公开(公告)日：2013-08-27

申请号：US12480439

申请日：2009-06-08

申请人： Yasunori Fujimoto ,  Tomokazu Yanai ,  Shinichi Miyazaki

发明人： Yasunori Fujimoto ,  Tomokazu Yanai ,  Shinichi Miyazaki

IPC分类号： H04N1/40 ,  H04N1/60 ,  G03F3/08 ,  G06K9/00

CPC分类号： H04N1/405 ,  G06K15/105

摘要： Graininess is suppressed while at the same time minimizing grayscale variations caused by inter-plane deviations. For this purpose, when a pixel is printed by M relative scans of a print head over a print medium or by a relative scans of M print heads over the print medium, M pieces of multivalued image data is created according to a division number or distribution ratio determined by a grayscale value of that pixel. The M pieces of multivalued image data are individually quantized and then the printing is performed according to the quantized pixel data. This process prevents dot generation delays and graininess from deteriorating in highlighted areas, thus realizing printed images highly robust against density variations.

摘要翻译： 颗粒被抑制，同时最小化由平面间偏差引起的灰度变化。 为此，当通过M打印介质上的打印头的相对扫描或通过打印介质上的M个打印头的相对扫描来打印像素时，根据分割数或分布创建M个多值图像数据 比例由该像素的灰度值确定。 M个多值图像数据被单独量化，然后根据量化的像素数据进行打印。 该过程可防止突出显示区域中的点生成延迟和颗粒度恶化，从而实现对密度变化的高度鲁棒的打印图像。

公开(公告)号：US20100188678A1

公开(公告)日：2010-07-29

申请号：US12692867

申请日：2010-01-25

申请人： Shinichi Miyazaki ,  Tomokazu Yanai ,  Yasunori Fujimoto

发明人： Shinichi Miyazaki ,  Tomokazu Yanai ,  Yasunori Fujimoto

IPC分类号： G06K15/00

CPC分类号： H04N1/401 ,  H04N1/4052

摘要： When executing the gradation lowering processing to a data area in the lower side in multi-valued print data 403, an error generated by executing the gradation lowering processing to the data area in the lower side is stored in an information storage area 901B. On the other hand, the error thus distributed and stored is used for executing the gradation lowering processing to the data area “J” (Jth line) in multi-valued print data 404 relating to the next scan. In this way the error generated when executing the gradation lowering processing to the multi-valued print data is stored, which is used at the time of executing the gradation lowering processing to the multi-valued print data relating to the next scan. Therefore, the density is stored by receiving and delivering the error between the multi-valued print data in a scan unit.

摘要翻译： 当在多值打印数据403中对下侧的数据区域执行灰度降低处理时，通过对下侧的数据区域执行灰度降低处理而产生的错误被存储在信息存储区域901B中。 另一方面，这样分配和存储的误差被用于对与下一次扫描有关的多值打印数据404中的数据区“J”（第J行）执行灰度降低处理。 以这种方式，在对多值打印数据执行灰度降低处理时产生的误差被存储在对与下一次扫描相关的多值打印数据执行灰度降低处理时使用。 因此，通过在扫描单元中的多值打印数据之间接收和传送误差来存储密度。

公开(公告)号：US20090244580A1

公开(公告)日：2009-10-01

申请号：US12480439

申请日：2009-06-08

申请人： Yasunori Fujimoto ,  Tomokazu Yanai ,  Shinichi Miyazaki

发明人： Yasunori Fujimoto ,  Tomokazu Yanai ,  Shinichi Miyazaki

IPC分类号： H04N1/60

CPC分类号： H04N1/405 ,  G06K15/105

摘要： Graininess is suppressed while at the same time minimizing grayscale variations caused by inter-plane deviations. For this purpose, when a pixel is printed by M relative scans of a print head over a print medium or by a relative scans of M print heads over the print medium, M pieces of multivalued image data is created according to a division number or distribution ratio determined by a grayscale value of that pixel. The M pieces of multivalued image data are individually quantized and then the printing is performed according to the quantized pixel data. This process prevents dot generation delays and graininess from deteriorating in highlighted areas, thus realizing printed images highly robust against density variations.

摘要翻译： 颗粒被抑制，同时最小化由平面间偏差引起的灰度变化。 为此，当通过M打印介质上的打印头的相对扫描或通过打印介质上的M个打印头的相对扫描来打印像素时，根据分割数或分布创建M个多值图像数据 比例由该像素的灰度值确定。 M个多值图像数据被单独量化，然后根据量化的像素数据执行打印。 该过程可防止突出显示区域中的点生成延迟和颗粒度恶化，从而实现对密度变化的高度鲁棒的打印图像。

公开(公告)号：US08514454B2

公开(公告)日：2013-08-20

申请号：US12335368

申请日：2008-12-15

申请人： Yasunori Fujimoto ,  Daigoro Kanematsu ,  Tomokazu Yanai

发明人： Yasunori Fujimoto ,  Daigoro Kanematsu ,  Tomokazu Yanai

IPC分类号： H04N1/40

CPC分类号： G06K15/107

摘要： An image processing apparatus is configured to process multivalued image data corresponding to a unit area of a recording medium so as to form an image on the unit area with a plurality of relative movements between a recording head and the recording medium. The apparatus has a selecting unit for selecting either a first processing mode to segment the multivalued image data into a plurality of multivalued image data corresponding to the plurality of relative movements, and then quantize each of the plurality of multivalued image data, or a second processing mode to quantize the multivalued image data into quantized image data, and then segment the quantized image data into a plurality of quantized image data corresponding to the plurality of relative movements. The selecting unit may select either the first processing mode or the second processing mode based on the number of relative movements to the unit area.

摘要翻译： 图像处理装置被配置为处理与记录介质的单位区域对应的多值图像数据，以便在记录头和记录介质之间以多个相对运动在单位区域上形成图像。 该装置具有选择单元，用于选择第一处理模式以将多值图像数据分割成与多个相对运动相对应的多个多值图像数据，然后量化多个多值图像数据中的每一个，或者进行第二处理 模式，将多值图像数据量化为量化图像数据，然后将量化图像数据分割成与多个相对运动相对应的多个量化图像数据。 选择单元可以基于到单位区域的相对运动的数量来选择第一处理模式或第二处理模式。

公开(公告)号：US08419153B2

公开(公告)日：2013-04-16

申请号：US12839086

申请日：2010-07-19

申请人： Takumi Kaneko ,  Yasunori Fujimoto ,  Tomokazu Yanai

发明人： Takumi Kaneko ,  Yasunori Fujimoto ,  Tomokazu Yanai

IPC分类号： B41J2/05

CPC分类号： B41J19/147

摘要： When recording with the use of a multi-pass recording method, the order in which a specific ink and the other inks are applied in layers is controlled while preventing the multiple recording scans (passes) from becoming unnecessary uneven in terms of the ink recording permission ratio, and also, the ratio with which the specific ink is permitted to be applied to each unit pixel is determined for each recording scan (pass), based on the information (for example, CMYK information, RGB information, etc.) regarding the specific ink and the other inks, which are to be applied to each unit pixel. Therefore, it is possible to change the recording scan(s), to which the application of the specific ink is concentrated, based on the application conditions for the specific ink and the other inks, and therefore, it is possible to change the ratio with which the specific ink is applied before or after the other inks are applied. Therefore, it is possible to control the order in which the specific ink and the other inks are applied in layers.

摘要翻译： 当使用多遍记录方法进行记录时，控制特定墨水和其它墨水层的顺序，同时防止多次记录扫描（通过）在墨水记录许可方面不必要地不均匀 并且根据关于该单位像素的信息（例如，CMYK信息，RGB信息等），针对每个记录扫描（通过）确定允许将特定油墨施加到每个单位像素的比例 特定油墨和其他油墨，其将被应用于每个单位像素。 因此，可以根据特定墨水和其他墨水的使用条件来改变特定墨水的浓缩应用的记录扫描，因此可以将比例改变为 在施加其它油墨之前或之后施加特定油墨。 因此，可以控制特定油墨和其它油墨的层次顺序。

公开(公告)号：US20100277521A1

公开(公告)日：2010-11-04

申请号：US12839086

申请日：2010-07-19

申请人： Takumi Kaneko ,  Yasunori Fujimoto ,  Tomokazu Yanai

发明人： Takumi Kaneko ,  Yasunori Fujimoto ,  Tomokazu Yanai

IPC分类号： B41J29/38

CPC分类号： B41J19/147

摘要： When recording with the use of a multi-pass recording method, the order in which a specific ink and the other inks are applied in layers is controlled while preventing the multiple recording scans (passes) from becoming unnecessary uneven in terms of the ink recording permission ratio, and also, the ratio with which the specific ink is permitted to be applied to each unit pixel is determined for each recording scan (pass), based on the information (for example, CMYK information, RGB information, etc.) regarding the specific ink and the other inks, which are to be applied to each unit pixel. Therefore, it is possible to change the recording scan(s), to which the application of the specific ink is concentrated, based on the application conditions for the specific ink and the other inks, and therefore, it is possible to change the ratio with which the specific ink is applied before or after the other inks are applied. Therefore, it is possible to control the order in which the specific ink and the other inks are applied in layers.

摘要翻译： 当使用多遍记录方法进行记录时，控制特定墨水和其它墨水层的顺序，同时防止多次记录扫描（通过）在墨水记录许可方面不必要地不均匀 并且根据关于该单位像素的信息（例如，CMYK信息，RGB信息等），针对每个记录扫描（通过）确定允许特定墨被施加到每个单位像素的比例 特定油墨和其他油墨，其将被应用于每个单位像素。 因此，可以根据特定墨水和其他墨水的使用条件来改变特定墨水的浓缩应用的记录扫描，因此可以将比例改变为 在施加其它油墨之前或之后施加特定油墨。 因此，可以控制特定油墨和其它油墨的层次顺序。

公开(公告)号：US20090161131A1

公开(公告)日：2009-06-25

申请号：US12335368

申请日：2008-12-15

申请人： Yasunori Fujimoto ,  Daigoro Kanematsu ,  Tomokazu Yanai

发明人： Yasunori Fujimoto ,  Daigoro Kanematsu ,  Tomokazu Yanai

IPC分类号： G06F15/00 ,  G06K9/34

CPC分类号： G06K15/107

摘要： An image processing apparatus is configured to process multivalued image data corresponding to a unit area of a recording medium so as to form an image on the unit area with a plurality of relative movements between a recording head and the recording medium. The apparatus has a selecting unit for selecting either a first processing mode to segment the multivalued image data into a plurality of multivalued image data corresponding to the plurality of relative movements, and then quantize each of the plurality of multivalued image data, or a second processing mode to quantize the multivalued image data into quantized image data, and then segment the quantized image data into a plurality of quantized image data corresponding to the plurality of relative movements. The selecting unit may select either the first processing mode or the second processing mode based on the number of relative movements to the unit area.

摘要翻译： 图像处理装置被配置为处理与记录介质的单位区域对应的多值图像数据，以便在记录头和记录介质之间以多个相对运动在单位区域上形成图像。 该装置具有选择单元，用于选择第一处理模式以将多值图像数据分割成与多个相对运动相对应的多个多值图像数据，然后量化多个多值图像数据中的每一个，或者进行第二处理 模式，将多值图像数据量化为量化图像数据，然后将量化图像数据分割成与多个相对运动相对应的多个量化图像数据。 选择单元可以基于到单位区域的相对运动的数量来选择第一处理模式或第二处理模式。

公开(公告)号：US08520277B2

公开(公告)日：2013-08-27

申请号：US13191237

申请日：2011-07-26

申请人： Koji Fuse ,  Takafumi Niida ,  Tomokazu Yanai ,  Takashi Ochiai

发明人： Koji Fuse ,  Takafumi Niida ,  Tomokazu Yanai ,  Takashi Ochiai

IPC分类号： G06K15/00 ,  H04N1/46

CPC分类号： H04N1/52

摘要： An image processing apparatus may include a first screen processing unit, a moiré component calculation unit, a first correction unit, and a second screen processing unit. The first screen processing unit performs screen processing on image data to form screen processed image data. The moiré component calculation unit calculates an original moiré component that corresponds to a low-frequency component of the screen processed image data and a low-frequency component of the image data. The first correction unit corrects the image data based on a calculated moiré component. The second screen processing unit performs the screen processing on the corrected image data.

摘要翻译： 图像处理装置可以包括第一屏幕处理单元，莫尔分量计算单元，第一校正单元和第二屏幕处理单元。 第一屏幕处理单元对图像数据执行屏幕处理以形成屏幕处理图像数据。 莫尔分量计算单元计算对应于屏幕处理图像数据的低频分量的原始莫尔分量和图像数据的低频分量。 第一校正单元基于计算出的莫尔分量校正图像数据。 第二屏幕处理单元对校正后的图像数据执行屏幕处理。

公开(公告)号：US08482792B2

公开(公告)日：2013-07-09

申请号：US12630297

申请日：2009-12-03

申请人： Tomokazu Yanai

发明人： Tomokazu Yanai

IPC分类号： H04N1/60 ,  G06F3/12

CPC分类号： H04N1/1911 ,  H04N1/1915 ,  H04N1/2307 ,  H04N1/52 ,  H04N2201/0082

摘要： An image forming apparatus having a recording head with a plurality of printing elements comprising: a first quantization unit that performs a first quantization process on input image data to calculate N-level data by using a screen parameter corresponding to a screen condition of a target device; a conversion unit that converts the N-level data to M-level data (M>N); a configuring unit that configures printing density for each of the printing elements for each scan, using the M-level data; a second quantization unit that performs a second quantization process on the printing density for the scan of interest, using constraining information for the scan of interest; and a generating unit that generates the constraining information for the scan of interest, from the printing density configured for the preceding scan and the result of the second quantization process for the preceding scan.

摘要翻译： 一种图像形成装置，具有具有多个打印元件的记录头，包括：第一量化单元，其对输入图像数据执行第一量化处理，以通过使用与目标设备的屏幕条件相对应的屏幕参数来计算N电平数据 ; 转换单元，将N电平数据转换为M电平数据（M> N）; 使用M级数据配置用于每次扫描的每个打印元件的打印浓度的配置单元; 第二量化单元，使用用于感兴趣的扫描的约束信息对感兴趣的扫描的打印浓度执行第二量化处理; 以及生成单元，根据用于先前扫描的打印浓度和前一次扫描的第二量化处理的结果，生成用于感兴趣的扫描的约束信息。