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：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：US08274704B2

公开(公告)日：2012-09-25

申请号：US12335185

申请日：2008-12-15

申请人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Naoko Baba

发明人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Naoko Baba

IPC分类号： H04N1/40

CPC分类号： G06K15/107

摘要： An information processing apparatus processes, for each pixel, multivalued image data for 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 selector that selects a first processing mode for dividing the multivalued image data into a plurality of pieces of multivalued image data corresponding to the plurality of relative movements, and then quantizing each of the plurality of pieces of multivalued image data, or a second processing mode for quantizing the multivalued image data into quantized image data, and then dividing the quantized image data into a plurality of pieces of quantized image data corresponding to the plurality of relative movements. The selector selects the processing mode based on a content (attribute, grayscale, color, etc.) of the multivalued image data.

摘要翻译： 信息处理装置针对每个像素处理记录介质的单位区域的多值图像数据，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。 该装置具有选择器，其选择用于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的第一处理模式，然后量化多个多值图像数据中的每一个，或者 第二处理模式，用于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划分为与多个相对运动相对应的多个量化图像数据。 选择器基于多值图像数据的内容（属性，灰度，颜色等）来选择处理模式。

公开(公告)号：US08164793B2

公开(公告)日：2012-04-24

申请号：US12511773

申请日：2009-07-29

申请人： Shigeru Fujita ,  Hiroki Horikoshi ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Akira Ichimura ,  Hironori Nakamura

发明人： Shigeru Fujita ,  Hiroki Horikoshi ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Akira Ichimura ,  Hironori Nakamura

IPC分类号： G06K1/00 ,  H04N1/46 ,  B41J29/38 ,  B41J2/015

CPC分类号： G06K15/107

摘要： In a multipass printing that performs a plurality of printing scans over a unit area of a print medium by using a leading head and a follower head, the multivalued image data for the leading head is distributed according to the print volume information for up to the preceding printing scan. Then, the multivalued image data for the leading head is subjected to the grayscale level reduction operation to generate binary data. Based on the binary data, the print volume information is updated, after which the multivalued image data for the follower head is distributed according to the print volume information. This causes a plurality of printing scans or a plurality of print heads, that print the same unit area, to have a correlation among them, with the result that dots on a plurality of planes when overlapped have an excellent scattering characteristic.

摘要翻译： 在通过使用前导头和跟随头在打印介质的单位区域上执行多次打印扫描的多页打印中，用于前导头的多值图像数据根据打印体积信息被分配到最前面 打印扫描。 然后，对前导头的多值图像数据进行灰度级降低操作，以生成二进制数据。 基于二进制数据，更新打印体积信息，然后根据打印量信息分配随机头的多值图像数据。 这导致打印相同单位区域的多个打印扫描或多个打印头在它们之间具有相关性，结果是当重叠时多个平面上的点具有优异的散射特性。

公开(公告)号：US20090161165A1

公开(公告)日：2009-06-25

申请号：US12335185

申请日：2008-12-15

申请人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Naoko Baba

发明人： Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hiroki Horikoshi ,  Akira Ichimura ,  Naoko Baba

IPC分类号： H04N1/40

CPC分类号： G06K15/107

摘要： An information processing apparatus processes, for each pixel, multivalued image data for 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 selector that selects a first processing mode for dividing the multivalued image data into a plurality of pieces of multivalued image data corresponding to the plurality of relative movements, and then quantizing each of the plurality of pieces of multivalued image data, or a second processing mode for quantizing the multivalued image data into quantized image data, and then dividing the quantized image data into a plurality of pieces of quantized image data corresponding to the plurality of relative movements. The selector selects the processing mode based on a content (attribute, grayscale, color, etc.) of the multivalued image data.

摘要翻译： 信息处理装置针对每个像素处理记录介质的单位区域的多值图像数据，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。 该装置具有选择器，其选择用于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的第一处理模式，然后量化多个多值图像数据中的每一个，或者 第二处理模式，用于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划分为与多个相对运动相对应的多个量化图像数据。 选择器基于多值图像数据的内容（属性，灰度，颜色等）来选择处理模式。

公开(公告)号：US20100171972A1

公开(公告)日：2010-07-08

申请号：US12651697

申请日：2010-01-04

申请人： Shigeru Fujita ,  Akira Ichimura ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hironori Nakamura

发明人： Shigeru Fujita ,  Akira Ichimura ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Hironori Nakamura

IPC分类号： G06F15/00

CPC分类号： H04N1/1911 ,  H04N1/1913 ,  H04N1/405 ,  H04N2201/0082

摘要： Multi-valued image data stored in an input image buffer are read out for each time of scans, and the color space conversion and image distribution are performed to read multi-valued image data. The binarized result is sent to the print buffer and at the same time, is accumulated as the print information to execute processing of reflecting it to the image distribution processing of the next pass. It is possible to appropriately restrict the density fluctuation due to the print position shift between planes without providing pixels where dots are overlapped and printed more than necessary. With this, by accumulating the multi-valued image data at the stage of RGB in the input image buffer to read out data stored in input image buffer for executing processing, a capacity required for input image buffer does not change even if the number of the ink colors provided on the printing apparatus increases.

摘要翻译： 对于每次扫描，读出存储在输入图像缓冲器中的多值图像数据，并执行色彩空间转换和图像分布以读取多值图像数据。 将二值化结果发送到打印缓冲器，并且同时累积作为打印信息，以执行将其反映到下一遍的图像分发处理的处理。 可以适当地限制由于平面之间的打印位置偏移引起的浓度波动，而不需要提供点重叠和打印更多的像素。 由此，通过在输入图像缓冲器中累积RGB阶段的多值图像数据以读出存储在输入图像缓冲器中的数据进行处理，输入图像缓冲器所需的容量即使在 提供在打印设备上的墨水颜色增加。

公开(公告)号：US20100165366A1

公开(公告)日：2010-07-01

申请号：US12638787

申请日：2009-12-15

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

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

IPC分类号： G06F15/00

CPC分类号： H04N1/23

摘要： The quantity processing is executed to data distributed for each color. Binary data obtained by this quantization processing are selected only in regard to a color generating print quantity information. Filtering processing is executed to the binary data of the selected color to generate the print quantity information. In the quantization processing for a second plane, data found by converting the print quantity information generated in the first plane processing into a minus value are added to the multi-valued data. In the quantization processing in the second plane added, the value of the multi-valued data is made small and in the quantity, probability that the multi-valued data become binary data printing the dots is made small. That is, a ratio where dots in the first plane and dots in the second plane overlap and are formed can be made small.

摘要翻译： 对每种颜色分配的数据执行数量处理。 通过该量化处理获得的二进制数据仅针对颜色生成打印量信息而选择。 对所选颜色的二进制数据执行过滤处理以生成打印量信息。 在第二平面的量化处理中，通过将在第一平面处理中生成的打印量信息转换为负值而找到的数据被添加到多值数据。 在添加的第二平面的量化处理中，多值数据的值变小，并且在多值数据变成二进制数据打印点的概率很小。 也就是说，可以使第一平面中的点和第二平面中的点重叠并形成的比率较小。

公开(公告)号：US08477397B2

公开(公告)日：2013-07-02

申请号：US12640741

申请日：2009-12-17

申请人： Hironori Nakamura ,  Hiroki Horikoshi ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Akira Ichimura

发明人： Hironori Nakamura ,  Hiroki Horikoshi ,  Yasunori Fujimoto ,  Shinichi Miyazaki ,  Akira Ichimura

IPC分类号： G03F3/08

CPC分类号： H04N1/23 ,  H04N1/405

摘要： A channel selection section selects whether the subsequent processing to the image data is executed by image distribution precedence processing or by gradation lowering precedence processing in accordance with channel information of the image data. That is, in regard to the channels of C, M and K with relatively high density among inks, the image distribution precedence processing excellent in robustness is selected. On the other hand, in the ink of the color with high brightness or low density, even if the print position of the dot is shifted, the density change due to this shift is not so much large. It is possible to restrict an increase in the processing load due to executing the gradation lowering processing after the distribution processing to each of the plural divided images by thus not selecting the image distribution precedence processing in consideration of the robustness.

摘要翻译： 频道选择部选择是否通过图像分配优先处理执行对图像数据的后续处理，或者根据图像数据的频道信息来进行灰度降低优先处理。 也就是说，关于墨水中密度相对较高的C，M和K的通道，选择鲁棒性优异的图像分配优先处理。 另一方面，在具有高亮度或低密度的颜色的墨中，即使点的打印位置偏移，由于该偏移导致的浓度变化也不是很大。 考虑到鲁棒性，通过不选择图像分配优先处理，可以限制由于在分配处理之后对多个分割图像中的每一个执行灰度降低处理而导致的处理负荷的增加。