公开(公告)号：US20120038957A1

公开(公告)日：2012-02-16

申请号：US13205733

申请日：2011-08-09

申请人： Hiroki Umezawa

发明人： Hiroki Umezawa

IPC分类号： H04N1/46

CPC分类号： H04N1/4078 ,  H04N1/6033

摘要： A print calibration processing apparatus includes a test image output section configured to outputs plural patches for gradation characteristic generation to an image forming section, a gradation characteristic data generation section configured to use, as a read object, a test chart obtained by printing the test images on both the sides of the print sheet by the image forming section while shifting print positions of the test images in a front and back direction, reads the images on a first and second side of the test chart, and generates gradation characteristic data of front test images on the first side and the second side and gradation characteristic data of show-through test images on the first and second side, a correction data generation section configured to determine a correction value of maximum gradation based on gradation characteristics of the front and the show-through test images, and a correction section configured to correct gradation of image data.

摘要翻译： 打印校准处理装置包括：测试图像输出部，被配置为向图像形成部输出用于灰度特性生成的多个片，灰度特性数据生成部，被配置为使用通过打印测试图像而获得的测试图作为读取对象 在沿着前后方向移动测试图像的打印位置的同时，通过图像形成部分在打印纸的两侧读取测试图的第一和第二侧上的图像，并且生成前测试的灰度特性数据 第一侧和第二侧的图像以及第一和第二侧的直通测试图像的灰度特性数据;校正数据生成部，被配置为基于前面的灰度特性和显示来确定最大灰度的校正值 通过测试图像，以及校正部分，被配置为校正图像数据的灰度。

公开(公告)号：US20070297667A1

公开(公告)日：2007-12-27

申请号：US11455118

申请日：2006-06-16

申请人： Hiroki Umezawa

发明人： Hiroki Umezawa

IPC分类号： G06K9/00 ,  H04N1/60

CPC分类号： H04N1/6027

摘要： It is an object of the invention to provide a technique for preventing image quality deterioration of a print image involved in adjustment of color conversion parameters in image formation processing.An image processing apparatus includes: a change information acquiring unit that acquires, when first brightness setting information is changed, information on the change, the first brightness setting information defining, in printing a color that can be represented by color materials of plural colors, brightness that should be represented using the color materials; a calculating unit that calculates, on the basis of the change information acquired by the change information acquiring unit, information on second brightness setting information defining, in printing a color represented only by a black color material, brightness that should be represented using the color material, the second brightness setting information making it possible to print an image of substantially the same brightness as an image printed using the first brightness setting information after the change; and a setting information changing unit that changes, on the basis of the information calculated by the calculating unit, setting content of the second brightness setting information.

摘要翻译： 本发明的目的是提供一种用于防止在图像形成处理中调整颜色转换参数所涉及的打印图像的图像质量劣化的技术。 一种图像处理装置，包括：改变信息获取单元，当第一亮度设置信息被改变时，获取关于所述改变的信息，所述第一亮度设置信息定义在打印可以由多种颜色的颜色材料表示的颜色的亮度 应使用彩色材料代表; 计算单元，其基于由变化信息获取单元获取的变化信息，计算关于第二亮度设置信息的信息，所述第二亮度设置信息在打印仅由黑色材料表示的颜色时，定义应使用颜色材料表示的亮度 第二亮度设置信息使得可以在改变之后打印使用第一亮度设置信息打印的图像基本上相同亮度的图像; 以及设置信息改变单元，其基于由所述计算单元计算出的信息，改变所述第二亮度设置信息的内容。

公开(公告)号：US20070230775A1

公开(公告)日：2007-10-04

申请号：US11397444

申请日：2006-04-04

申请人： Norimasa Ariga ,  Hiroki Umezawa

发明人： Norimasa Ariga ,  Hiroki Umezawa

IPC分类号： G06K9/00

CPC分类号： H04N1/603 ,  H04N1/6058

摘要： An image processing apparatus comprising: a first color conversion table in which a relation in conversion from a color in a first color space to a color in a second color space is recorded; a second color conversion table in which a relation in conversion from a color in a third color space to a color in the second color space is recorded; a first color converting means for converting a color in the first color space into a color in the second color space; a gamut creating means for creating a gamut; a second color converting means for converting a color in the second color space into a color in the gamut; a color conversion table creating means for creating a third color conversion table; and a third color converting means for converting a color in the gamut into a color in the third color space.

摘要翻译： 一种图像处理装置，包括：第一颜色转换表，其中记录从第一颜色空间中的颜色到第二颜色空间中的颜色的转换中的关系; 第二颜色转换表，其中记录从第三颜色空间中的颜色到第二颜色空间中的颜色的转换关系; 第一颜色转换装置，用于将第一颜色空间中的颜色转换为第二颜色空间中的颜色; 用于创建色域的色域创建装置; 第二颜色转换装置，用于将第二颜色空间中的颜色转换成色域中的颜色; 用于创建第三颜色转换表的颜色转换表创建装置; 以及第三颜色转换装置，用于将色域中的颜色转换为第三颜色空间中的颜色。

公开(公告)号：US07250956B2

公开(公告)日：2007-07-31

申请号：US10805379

申请日：2004-03-22

申请人： Takayuki Sawada ,  Hiroki Umezawa

发明人： Takayuki Sawada ,  Hiroki Umezawa

IPC分类号： G09G5/02

CPC分类号： H04N1/6019 ,  H04N1/603

摘要： Contents of a text processing job is not pre-traced, and at a stage of processing a drawing object, a CLUT combination relating thereto is determined to be ON/OFF. A plurality of drawing objects are associated with a set of CLUT combination, and a CLUT combination which has been once ON is maintained as is ON.

摘要翻译： 文本处理作业的内容未被预先追踪，并且在处理绘图对象的阶段，与其相关的CLUT组合被确定为ON / OFF。 多个绘图对象与一组CLUT组合相关联，并且已经一旦ON的CLUT组合被保持为ON。

公开(公告)号：US06402281B1

公开(公告)日：2002-06-11

申请号：US09313019

申请日：1999-05-17

申请人： Nobuhiko Nakahara ,  Hiroki Umezawa

发明人： Nobuhiko Nakahara ,  Hiroki Umezawa

IPC分类号： B41J2205

CPC分类号： H04N1/40087

摘要： In a multilevel error diffusion process, an input image signal Din with tones and an image correction signal Ecd are added together to produce a corrected image signal Dinc, which in turn is converted into an eight-level image signal to provide an output image signal Dout with eight tones. To convert the input image signal into the output image signal, there are provided a plurality of conversion tables and a switching means for selectively switching the conversion tables at random. The conversion tables are switched with each pixel in the corrected image signal.

摘要翻译： 在多级误差扩散处理中，将具有色调的输入图像信号Din和图像校正信号Ecd相加在一起以产生校正图像信号Dinc，该校正图像信号Dinc又被转换为八电平图像信号以提供输出图像信号Dout 有八个音调。 为了将输入图像信号转换为输出图像信号，提供了多个转换表和用于随意选择性地切换转换表的切换装置。 转换表与校正图像信号中的每个像素切换。

公开(公告)号：US06213585B1

公开(公告)日：2001-04-10

申请号：US09237421

申请日：1999-01-26

申请人： Noriyuki Kikuchi ,  Hiroki Umezawa

发明人： Noriyuki Kikuchi ,  Hiroki Umezawa

IPC分类号： B41J2145

CPC分类号： B41J19/202 ,  B41J11/42 ,  H04N1/40031

摘要： Provided is an image formation apparatus for printing pixel dots on a recording paper at pitches smaller than intervals between ink jet-out ports by using an ink jet recording head while moving the recording head in a rotation shaft direction and feeding a recording paper around the drum so as to wind the drum. The ink jet recording head has a plurality of ink jet-out ports arranged in line and is movable in a rotation shaft direction of the drum. In the case where the image formation is completed by two rounds of the drum, the recording head is shifted at the time the first drum rotation is completed, by a moving step amount determined so as to correspond to a specific feature of a human visual system, thereby suppressing image formation that is non-uniform in concentration.

摘要翻译： 提供了一种图像形成装置，用于通过使用喷墨记录头在记录头上沿着旋转轴方向移动记录头并将记录纸馈送到鼓周围，以便以小于喷墨口间隔的间距在记录纸上打印像素点 以便鼓起鼓。 喷墨记录头具有排列成一列的多个喷墨口，并且可以在滚筒的旋转轴方向上移动。 在通过两轮滚筒完成图像形成的情况下，记录头在第一滚筒旋转完成时通过确定为与人类视觉系统的特定特征相对应的移动步长量来移动 从而抑制浓度不均匀的图像形成。

公开(公告)号：US20090237690A1

公开(公告)日：2009-09-24

申请号：US12401681

申请日：2009-03-11

申请人： Hiroki Umezawa

发明人： Hiroki Umezawa

IPC分类号： G06F15/00

CPC分类号： H04N1/4074 ,  G06T3/4038

摘要： An image processing apparatus reconfigured image fragments received from a host, by using an image block selector 101 that generates a layout list of image fragments constituting an image before division for each image before division and an image block composer 102 that reconfigures the image before division in accordance with the layout list outputted from the image block selector 101. After that, the image processing apparatus performs correction such as luminance correct and white balance correction.

摘要翻译： 图像处理装置通过使用图像块选择器101来重构从主机接收的图像片段，该图像块选择器101生成构成分割前的每个图像的分割前的图像的图像片段的布局列表，以及在划分之前重新配置图像的图像块编辑器102 根据从图像块选择器101输出的布局列表。之后，图像处理装置执行亮度校正和白平衡校正等校正。

公开(公告)号：US20050206651A1

公开(公告)日：2005-09-22

申请号：US10805379

申请日：2004-03-22

申请人： Takayuki Sawada ,  Hiroki Umezawa

发明人： Takayuki Sawada ,  Hiroki Umezawa

IPC分类号： G06T1/00 ,  G09G5/02 ,  H04N1/46 ,  H04N1/60

CPC分类号： H04N1/6019 ,  H04N1/603

摘要： Contents of a text processing job is not pre-traced, and at a stage of processing a drawing object, a CLUT combination relating thereto is determined to be ON/OFF. A plurality of drawing objects are associated with a set of CLUT combination, and a CLUT combination which has been once ON is maintained as is ON.

摘要翻译： 文本处理作业的内容未被预先追踪，并且在处理绘图对象的阶段，与其相关的CLUT组合被确定为ON / OFF。 多个绘图对象与一组CLUT组合相关联，并且已经一旦ON的CLUT组合被保持为ON。

公开(公告)号：US06906825B1

公开(公告)日：2005-06-14

申请号：US09595052

申请日：2000-06-14

申请人： Nobuhiko Nakahara ,  Hiroki Umezawa

发明人： Nobuhiko Nakahara ,  Hiroki Umezawa

IPC分类号： G06F15/00 ,  G06K9/00 ,  G06K15/00

CPC分类号： H04N1/4051 ,  H04N1/4057 ,  H04N1/52

摘要： A halftone processing section halftone-processes input image data using a plurality of dither threshold planes. An image output section having different output position accuracies between a main scan direction and a sub-scan direction outputs an image corresponding to halftone-processed image data. Each of the dither threshold planes consists of a plurality of the same unit threshold matrixes. In the unit threshold matrix, a relatively medium to high threshold array in a predetermined threshold range corresponding to the entire tone range of the input image data is an aperiodic array and an anisotropic array with neighboring thresholds having close values, in a direction coincident with a scan direction, in which the output position accuracy of the image output means is low. With this configuration, the image output section outputs an image having serial medium and high tone dots in the scan direction.

摘要翻译： 半色调处理部分使用多个抖动阈值平面对输入图像数据进行半色调处理。 在主扫描方向和副扫描方向之间具有不同输出位置精度的图像输出部分输出对应于半色调处理的图像数据的图像。 每个抖动阈值平面由多个相同的单位阈值矩阵组成。 在单位阈值矩阵中，对应于输入图像数据的整个色调范围的预定阈值范围中的相对中等到高阈值阵列是具有相邻阈值的非周期阵列和具有接近值的各向异性阵列，在与 扫描方向，其中图像输出装置的输出位置精度低。 利用该配置，图像输出部分在扫描方向上输出具有串行介质和高色调点的图像。

公开(公告)号：US08526059B2

公开(公告)日：2013-09-03

申请号：US13156454

申请日：2011-06-09

申请人： Norimasa Ariga ,  Hiroki Umezawa

发明人： Norimasa Ariga ,  Hiroki Umezawa

IPC分类号： G06F15/00 ,  G06K1/00 ,  H04N1/60 ,  G06F3/08

CPC分类号： H04N1/4095

摘要： According to one embodiment, a printing calibration processing apparatus includes: a gradation-characteristic-data generating section configured to read images of a printed surface and a rear surface of a test chart output by an image forming section and generate gradation characteristic data of the surfaces; a gradation-correction-date creating section configured to determine a correction value of maximum gradation on the basis of gradation characteristics of the surfaces; a color-material-amount-conversion-data creating section configured to determine a maximum of a color material on the basis of the correction value of the maximum gradation; a color-material-amount-limitation processing section configured to perform, concerning image data for printing, limitation processing for setting the maximum of the color material as an upper limit of a color material use amount; and a gradation correcting section configured to apply gradation correction to the image data subjected to the limitation processing using the gradation correction data.

摘要翻译： 根据一个实施例，打印校准处理装置包括：灰度特性数据生成部，被配置为读取由图像形成部输出的测试图的打印面和背面的图像，并生成表面的灰度特性数据 ; 灰度校正日生成部，根据表面的灰度特性，确定最大灰度的校正值; 颜色量转换数据生成部，被配置为基于最大灰度的校正值来确定颜色材料的最大值; 颜色量限制处理部，被配置为执行关于用于打印的图像数据的限制处理，用于将色彩材料的最大值设置为色彩材料使用量的上限; 以及灰度校正部，被配置为使用灰度校正数据对经过限制处理的图像数据应用灰度校正。