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1. 发明专利

JP2012240359A Image forming apparatus, image forming method, program, and recording medium 有权
标题翻译：图像形成装置，图像形成方法，程序和记录介质
公开(公告)号：JP2012240359A
公开(公告)日：2012-12-10
申请号：JP2011114569
申请日：2011-05-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： B41J2/52 , B41J2/44 , B41J2/45 , B41J2/455 , H04N1/405
摘要： PROBLEM TO BE SOLVED: To obtain a high quality print output with which no vertical lines are found at joints of LED chips.SOLUTION: A moving-distance calculating unit 301 obtains a distance between the LED chips and positional information of a matrix for which a threshold has not been set, and then calculates a moving distance in a main scanning direction. A starting-position determining unit 302 moves the position of the matrix by a moving distance and then determines the position, which has been changed to the left/right in accordance with a random number generated by a random-number generating unit 303, as a growth starting position of a halftone dot. A plurality of threshold patterns having different growth starting positions are retained in advance in the threshold-pattern storing unit 305. A selecting unit 304 reads a threshold pattern corresponding to an obtained starting position. A dither matrix setting unit 306 sets a selected threshold pattern as a matrix.
摘要翻译：要解决的问题：获得在LED芯片的接头处没有发现垂直线的高质量打印输出。解决方案：移动距离计算单元301获得LED芯片之间的距离和尚未设置阈值的矩阵的位置信息，然后计算主扫描方向上的移动距离。起始位置确定单元302将矩阵的位置移动移动距离，然后根据随机数生成单元303生成的随机数来确定已经向左/右变化的位置作为半色调点的增长起始位置。具有不同增长开始位置的多个阈值图案被预先保留在阈值图案存储单元305中。选择单元304读取与获得的开始位置对应的阈值图案。抖动矩阵设置单元306将所选择的阈值图案设置为矩阵。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2011022363A Image forming apparatus, image forming method, program, and recording medium 审中-公开
标题翻译：图像形成装置，图像形成方法，程序和记录介质
公开(公告)号：JP2011022363A
公开(公告)日：2011-02-03
申请号：JP2009167341
申请日：2009-07-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： G03G15/01 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To highly accurately perform the color calibration of an image output device by deciding one of main RGB signals as a signal for affecting a surrounding area and controlling a patch arranged in the surrounding area (in a main scanning direction), according to at least the decided signal, thereby preventing a measured patch from being affected by the surrounding area (in the main scanning direction).
SOLUTION: The arrangement position in the main scanning direction of a color mixture patch is selected according to selection probability on a place table. When the position of the first patch (main component:G) is denoted as P3, the numeric value of the inhibition information of P2 (main component:G) adjacent to P3 is increased from 1.0 to 1.5 (the P2 data of G is rearranged to the lower side), to prevent the patch of the same component as the main component of P3 from being arranged adjacent to P3.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了高精度地执行图像输出装置的颜色校准，通过将主RGB信号中的一个判定为用于影响周围区域的信号并且控制布置在周围区域（在主扫描方向上）），至少根据决定的信号，从而防止测量的贴片受周围区域（主扫描方向）的影响。解决方案：根据位置表上的选择概率选择混合色块的主扫描方向上的排列位置。当第一贴片（主要成分：G）的位置被表示为P3时，与P3相邻的P2（主要成分：G）的禁止信息的数值从1.0增加到1.5（G的P2数据被重新排列到下侧），以防止与P3的主要部件相同的部件的贴片邻近P3布置。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010134366A Image forming apparatus, image forming method, program and recording medium 有权
标题翻译：图像形成装置，图像形成方法，程序和记录介质
公开(公告)号：JP2010134366A
公开(公告)日：2010-06-17
申请号：JP2008312439
申请日：2008-12-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： G03G15/00 , B41J2/44 , G03G15/01 , G03G15/08 , H04N1/23
摘要： PROBLEM TO BE SOLVED: To carry out the adjustment of an image forming density more accurately in the consideration of the periodical unevenness of the density in a paper passing direction. SOLUTION: The half cycle of density unevenness is defined as 0.5 L (L is periodical information and specific data for the product). A patch 401 in the half cycle with high density and a patch 402 in a half cycle with low density having the same color and a plurality of gradation values are respectively created on paper 403, 404 in the paper passing direction x with shifted phases. The influence of periodical density unevenness can be eliminated by using an average value of the measured results of the patches 401, 402 in two positions for density adjustment. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：考虑到纸张通过方向上的密度的周期性不均匀性，更准确地进行图像形成密度的调整。
解决方案：密度不均匀的半周期定义为0.5 L（L是产品的定期信息和具体数据）。具有高密度的半周期中的贴片401和具有相同颜色和多个灰度值的具有低浓度的半周期的贴片402分别在具有偏移相位的纸张通过方向x上的纸张403,404上形成。通过使用补片401,402的测量结果的平均值在两个位置进行浓度调整，可以消除周期性密度不均匀的影响。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010000759A Image formation apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010000759A
公开(公告)日：2010-01-07
申请号：JP2008163454
申请日：2008-06-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： B41J2/52 , H04N1/405
摘要： PROBLEM TO BE SOLVED: To improve the image quality of a highlight part of an output image in a laser printer or the like. SOLUTION: In an image processing unit 110, a halftone image signal is outputted from a halftone image buffer 112, and the line-per-inch information of the halftone image signal is outputted from a line-per-inch buffer 113. In an engine 120, an exposure energy setting unit 121 varies exposure energy by elongating and shortening an LD lighting time of an LD drive unit 122 in accordance with the line-per-inch information, thereby controlling sizes of formed dots in accordance with the line-per-inch information. The dot diameter of the case that the line per inch is 150 LPI or longer is 100%. In the range of the line per inch shorter than 150 LPI, the dot diameter is approximately 70% when the line per inch is approximately 50 LPI to approximately 100 LPI, and the dot diameter is approximately 85% in the case of the other line per inch. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提高激光打印机等中的输出图像的高亮部分的图像质量。解决方案：在图像处理单元110中，从半色调图像缓冲器112输出半色调图像信号，并且每英寸缓冲器113输出半色调图像信号的每行英寸信息。在发动机120中，曝光能量设定单元121通过根据英寸线信息来拉伸和缩短LD驱动单元122的LD点亮时间来改变曝光能量，从而根据线条控制形成的点的尺寸英寸信息。每英寸线数为150 LPI或更长的情况的点直径为100％。在每英寸短于150LIPI的线的范围内，当每英寸线为约50LipI至约100LIPI时，点直径约为70％，而在每条线的另一条线的情况下，点直径约为85％英寸。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009278378A Image processor, image processing method, image processing program and recording medium 审中-公开
标题翻译：图像处理器，图像处理方法，图像处理程序和记录介质
公开(公告)号：JP2009278378A
公开(公告)日：2009-11-26
申请号：JP2008127579
申请日：2008-05-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： H04N1/405 , G06T5/00
摘要： PROBLEM TO BE SOLVED: To provide an image processor forming stable images in which graininess is excellent, tones are gently switched and contours/pseudo contours are not easily recognized, and to provide an image processing method, a recording medium and a program.
SOLUTION: The image processor has a storage means for storing image data, and a control means for receiving commands and multivalued image data from an external apparatus such as a computer, performing halftone processing on the image data, binarizing them and storing them on the storage means. When the control means performs the halftone processing, for the area of the gradation level of at least a highlight part in the input image data, a regular screen structure corresponding to the gradation level is provided on the center part of the area of the same gradation level, the area comprising the end part of the area of the gradation level and the end part of a different gradation level adjacent to the end part of the area of the gradation level is tone-expressed by dots and the dots are irregularly arranged.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种形成稳定图像的图像处理器，其中颗粒度优异，轻轻地切换色调，并且不容易识别轮廓/伪轮廓，并且提供图像处理方法，记录介质和程序。解决方案：图像处理器具有用于存储图像数据的存储装置和用于从诸如计算机的外部装置接收命令和多值图像数据的控制装置，对图像数据执行半色调处理，对它们进行二值化并存储在存储装置上。当控制装置执行半色调处理时，对于输入图像数据中的至少高亮部分的灰度级的区域，在相同灰度级的区域的中心部分设置与灰度级相对应的规则屏幕结构电平时，包含灰度级的区域的结束部分的区域和与灰度等级的区域的结束部分相邻的不同灰度级的结束部分由点组成，并且点不规则地布置。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009194660A Image processor 审中-公开
标题翻译：图像处理器
公开(公告)号：JP2009194660A
公开(公告)日：2009-08-27
申请号：JP2008033668
申请日：2008-02-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： H04N1/405 , B41J2/52 , G06T5/00
摘要： PROBLEM TO BE SOLVED: To provide an image processor which generates high-quality images with halftone dots giving little feeling of noise, can obtain a stable quality even at the boundaries of input gradations, executes processing at a high speed, and is suitable for application to electrophotography.
SOLUTION: The image processor is provided with a first halftoning part 12-1 which generates halftone dot information for each of areas which are divided for each gradation value of input images by an area dividing part 11, an estimating part 14 which estimates whether halftone dots should be generated by the halftone dot generating means at the boundaries of the areas where the gradation value changes and a second halftoning part 12-2 which performs correction so that halftone dot information at the boundaries may be deleted or left according to the result of estimation by the estimating part 14.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种图像处理器，其产生具有很少噪点感的半色调点的高质量图像，即使在输入灰度的边界也能获得稳定的质量，以高速执行处理，并且是适用于电子照相。解决方案：图像处理器设置有第一半色调部分12-1，其通过区域划分部分11为输入图像的每个灰度值分割的每个区域产生半色调点信息，估计部分14估计是否应该在灰度值变化的区域的边界处由半色调点产生装置产生半色调点，以及执行校正的第二半色调部分12-2，使得边界处的半色调点信息可以根据估计部分14的估计结果。版权所有（C）2009年，JPO＆INPIT

7. 发明专利

JP2009055411A Image processor and electrophotographic image-forming device 审中-公开
标题翻译：图像处理器和电子图像形成装置
公开(公告)号：JP2009055411A
公开(公告)日：2009-03-12
申请号：JP2007221001
申请日：2007-08-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： H04N1/405 , G06T5/00
摘要： PROBLEM TO BE SOLVED: To provide an image processor for creating a dither matrix for improving image quality, and to provide an electrophotographic image-forming device.
SOLUTION: The image processor has a dither mask 5. The dither mask 5 is composed of a plurality of cells of the same external shapes. For each cell, a start pixel turned on first is a pixel or a few combined pixels. The start pixel is selected by the projection processing of a dot to the dither mask based on the generation of an irregular isolation dot. Other dots to be turned on in a cell are in a prescribed order to a start point, each on-pixel is connected to a pixel which is already turned on, and set in an order where it is turned on so that it does not project from the cell.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于创建用于提高图像质量的抖动矩阵的图像处理器，并且提供电子照相图像形成装置。解决方案：图像处理器具有抖动掩模5.抖动掩模5由相同外部形状的多个单元组成。对于每个单元，首先打开的开始像素是像素或几个组合像素。基于不规则隔离点的产生，通过将点投射到抖动掩模来选择起始像素。要在单元格中打开的其他点以指定的顺序到起始点，每个像素连接到已经打开的像素，并以其被打开的顺序设置，使得它不投影从细胞。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2006217543A Dither matrix optimizing device, image forming device and dither matrix optimizing method 审中-公开
标题翻译：数字矩阵优化装置，图像形成装置和数字矩阵优化方法
公开(公告)号：JP2006217543A
公开(公告)日：2006-08-17
申请号：JP2005030997
申请日：2005-02-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO , OGAWA TAKESHI
IPC分类号： H04N1/405 , G06T5/00
摘要： PROBLEM TO BE SOLVED: To provide a dither matrix optimizing device capable of performing efficient dither matrix correction by using genetic algorithm for optimizing a dither matrix, an image forming device and a dither matrix optimizing method.
SOLUTION: An evaluating means 4 evaluates image quality of a dither image output calculated on the basis of image data to be generated by a simulation means 3 in accordance with a dither matrix and characteristic data of an output engine, a genetic algorithm processing means 2 executes genetic algorithm processing on the basis of the fitness of a dither matrix calculated on the basis of this evaluation result, and a dither data outputting means 5 outputs the dither matrix by processed gene information. Consequently, a dither matrix, using a genetic algorithm, can be optimized regardless of a pattern size.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够通过使用用于优化抖动矩阵的遗传算法，图像形成装置和抖动矩阵优化方法来执行有效的抖动矩阵校正的抖动矩阵优化装置。解决方案：评估装置4根据由仿真装置3根据输出引擎的抖动矩阵和特征数据生成的图像数据计算的抖动图像输出的图像质量，遗传算法处理装置2基于基于该评估结果计算的抖动矩阵的适应度执行遗传算法处理，并且抖动数据输出装置5通过处理的基因信息输出抖动矩阵。因此，使用遗传算法的抖动矩阵可以被优化，而不管图案大小。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005297252A Image forming apparatus and image formation method 审中-公开
标题翻译：图像形成装置和图像形成方法
公开(公告)号：JP2005297252A
公开(公告)日：2005-10-27
申请号：JP2004113567
申请日：2004-04-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO , YASUTOMI HIROSHI , OGAWA TAKESHI
IPC分类号： B41J2/44 , H04N1/409
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which reduces a blank dot generated at the periphery of an image in a halftone background by correcting image data, and carries out the image reproduction of high image quality, and to provide an image formation method.
SOLUTION: A correcting means 4 using a smoothing filter makes the correction of increasing according to an image direction, the density of a low density side image in a image transfer part between a high density image and a low density image of an output image formed by processing the image data of an input image inputted by an image input means 1.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其通过校正图像数据来减少在半色调背景中的图像周围产生的空白点，并且执行高图像质量的图像再现，并且提供图像形成方法。解决方案：使用平滑滤波器的校正装置4进行根据图像方向的增加的校正，在高密度图像和输出的低密度图像之间的图像转印部分中的低密度侧图像的浓度通过处理由图像输入装置1输入的输入图像的图像数据形成的图像。（C）版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005012580A Image processing apparatus for electrophotography 审中-公开
标题翻译：图像处理设备用于电子照相
公开(公告)号：JP2005012580A
公开(公告)日：2005-01-13
申请号：JP2003175668
申请日：2003-06-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKESUE TOSHIHIRO
IPC分类号： B41J2/52 , B41J2/44 , H04N1/113 , H04N1/23 , H04N1/405 , H04N1/407
摘要： PROBLEM TO BE SOLVED: To provide an image processing apparatus for electrophotography for forming an image with image quality wherein the roughness is less.
SOLUTION: The image processing apparatus includes: an error spread processing section that forms an image by emitting a beam to a pixel region, receives gradation data by each pixel and generates image forming data DATA 1 of a target pixel formed by the emission of the beam by means of an FM modulation method such as error spread; and an image forming data correction section 58 for correcting the image forming data DATA 1 in response to the information of surrounding pixel dots around the target pixel. When dots exist only in one direction of the surrounding pixels, the image forming data correction section 58 corrects the image forming data DATA 1 to decrease the dot strength of the target pixel and forms auxiliary dots in a direction opposite to the dots of the surrounding pixels.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于形成具有粗糙度较小的图像质量的图像的电子照相用图像处理装置。解决方案：图像处理装置包括：通过向像素区域发射光束形成图像的误差扩展处理部分，通过每个像素接收灰度数据，并生成由发射形成的目标像素的图像形成数据DATA1 通过FM调制方法如误差扩展; 以及图像形成数据校正部分58，用于响应于围绕目标像素周围的像素点的信息来校正图像形成数据DATA 1。当仅在周围像素的一个方向上存在点时，图像形成数据校正部分58校正图像形成数据DATA 1以减小目标像素的点强度并且在与周围像素的点相反的方向上形成辅助点。版权所有（C）2005，JPO＆NCIPI

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