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1. 发明授权

US10091397B2 System including image forming apparatus and lattice point group generating device that generates group of pre-color conversion lattice points to be contained in color conversion table used for conversion of colors in RGB color space to colors in CMYK color space in the image forming apparatus 有权
公开(公告)号：US10091397B2
公开(公告)日：2018-10-02
申请号：US15250434
申请日：2016-08-29
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/60
摘要： A lattice point group generating method generates a group of pre-color conversion lattice points to be contained in a color conversion table for conversion of colors in a color space having three channels to colors in another color space. The method includes generating sequences and generating lattice points. The generating sequences generates three van der Corput sequences in which the number of terms is equal to a quotient obtained by subtracting a specified number from a maximum number of lattice points allocatable to the color conversion table and dividing the difference by 12 or 6, and whose basis is a positive integer greater than or equal to 2. The generating lattice points generates lattice points each located at coordinates including terms in the same ordinal number out of the three respective van der Corput sequences for six possible associations of the three van der Corput sequences with the three channels.

2. 发明授权

US09716811B2 Method and apparatus for obtaining cross-section of color gamut, and recording medium 有权
公开(公告)号：US09716811B2
公开(公告)日：2017-07-25
申请号：US14929437
申请日：2015-11-02
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/60 , H04N1/00
CPC分类号： H04N1/6061 , H04N1/00023 , H04N1/6033 , H04N1/6066
摘要： This is a method for obtaining a cross-section of a color gamut of an image forming apparatus by slicing the color gamut along a plane. This method includes the steps of obtaining gamut boundary line segments, obtaining cross-section boundary line segments, and obtaining endpoints. The gamut boundary line-segment obtaining step is to obtain gamut boundary line segments serving as baseline segments of a boundary of the color gamut. The cross-section boundary line-segment obtaining step is to obtain cross-section boundary line segments serving as baseline segments of a boundary of the cross-section. The endpoints obtained in the endpoint obtaining step are points of intersection of the gamut boundary line segments and the plane. The cross-section boundary line segments obtained in the cross-section boundary line-segment obtaining step are line segments making up a route that is the shortest route passing through all the endpoints only once.

3. 发明授权

US08982417B2 Image processing apparatus that prevents an occurrence of contouring, non-transitory computer-readable recording medium storing an image processing program, and image processing method 有权
标题翻译：防止存在图像处理程序的轮廓，非暂时的计算机可读记录介质的发生的图像处理装置，以及图像处理方法
公开(公告)号：US08982417B2
公开(公告)日：2015-03-17
申请号：US14093708
申请日：2013-12-02
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/405 , H04N1/60
CPC分类号： H04N1/6027 , H04N1/4052
摘要： An image processing apparatus includes a color conversion processing unit, a modulation difference creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation difference creating unit creates modulation differences. The modulation differences include combinations that are obtained by either setting or not setting a value equivalent to the minimum resolution of the tentative output color value for each color component of the tentative output color value. The color value modulating unit performs modulation on the tentative output color value by adding or subtracting a modulation difference selected at random to or from the tentative output color value. The output unit outputs the target image according to the color value obtained after modulation.
摘要翻译：图像处理装置包括颜色转换处理单元，调制差产生单元，色值调制单元和输出单元。颜色转换处理单元从目标图像的输入颜色值执行颜色转换为相应的输出颜色值，以获得暂定输出颜色值。调制差产生单元产生调制差异。调制差异包括通过设定或不设置与临时输出颜色值的每个颜色分量的暂定输出颜色值的最小分辨率相等的值来获得的组合。色值调制单元通过对暂定输出色值随机地选择的调制差进行加减，来对暂定输出色值进行调制。输出单元根据调制后获得的颜色值输出目标图像。

4. 发明申请

US20140153824A1 Image Processing Apparatus That Performs Color Conversion and Image Processing Method 有权
标题翻译：执行颜色转换和图像处理方法的图像处理装置
公开(公告)号：US20140153824A1
公开(公告)日：2014-06-05
申请号：US14091425
申请日：2013-11-27
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： G06T7/40
CPC分类号： H04N1/6016
摘要： An image processing apparatus in the present disclosure includes a color conversion processing unit, a modulation candidate creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation candidate creating unit creates, as modulation candidates, combinations of integer values obtained by rounding up or down the decimal fraction of each color component of a tentative output color value. The color value modulating unit selects a modulation candidate at random and performs modulation by replacing the tentative output color value with the selected modulation candidate. The output unit outputs the target image according to the color value obtained after the modulation.
摘要翻译：本公开的图像处理装置包括颜色转换处理单元，调制候选创建单元，颜色值调制单元和输出单元。颜色转换处理单元从目标图像的输入颜色值执行颜色转换为相应的输出颜色值，以获得暂定输出颜色值。调制候补创建单元创建通过向上或向下舍入初步输出颜色值的每个颜色分量的小数部分而获得的整数值的组合作为调制候选。色值调制单元随机选择调制候选，并通过用所选择的调制候补替换初步输出颜色值来进行调制。输出单元根据调制后获得的颜色值输出目标图像。

5. 发明申请

US20140153054A1 Image Processing Apparatus That Prevents an Occurrence of Contouring, Non-Transitory Computer-Readable Recording Medium Storing an Image Processing Program, and Image Processing Method 有权
标题翻译：防止轮廓，非瞬时计算机可读记录媒体存储图像处理程序的图像处理装置和图像处理方法
公开(公告)号：US20140153054A1
公开(公告)日：2014-06-05
申请号：US14093708
申请日：2013-12-02
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/52 , H04N1/60 , H04N1/405 , G06K15/02
CPC分类号： H04N1/6027 , H04N1/4052
摘要： An image processing apparatus includes a color conversion processing unit, a modulation difference creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation difference creating unit creates modulation differences. The modulation differences include combinations that are obtained by either setting or not setting a value equivalent to the minimum resolution of the tentative output color value for each color component of the tentative output color value. The color value modulating unit performs modulation on the tentative output color value by adding or subtracting a modulation difference selected at random to or from the tentative output color value. The output unit outputs the target image according to the color value obtained after modulation.
摘要翻译：图像处理装置包括颜色转换处理单元，调制差产生单元，色值调制单元和输出单元。颜色转换处理单元从目标图像的输入颜色值执行颜色转换为相应的输出颜色值，以获得暂定输出颜色值。调制差产生单元产生调制差异。调制差异包括通过设定或不设置与临时输出颜色值的每个颜色分量的暂定输出颜色值的最小分辨率相当的值来获得的组合。色值调制单元通过对暂定输出色值随机地选择的调制差进行加减，来对暂定输出色值进行调制。输出单元根据调制后获得的颜色值输出目标图像。

6. 发明授权

US09948831B2 In/out-of-gamut determination system for acquiring cross-section of color gamut of image forming apparatus taken on specific plane 有权
公开(公告)号：US09948831B2
公开(公告)日：2018-04-17
申请号：US15250454
申请日：2016-08-29
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/64 , H04N1/60
CPC分类号： H04N1/646 , H04N1/6061 , H04N1/6075 , H04N2201/0039 , H04N2201/0094
摘要： A color gamut cross-section acquiring method for acquiring a cross-section of a color gamut of an image forming apparatus taken on a specific plane includes: acquiring color gamut boundary line segments; acquiring intersection points between the color gamut boundary line segments and the specific plane; acquiring a shortest possible route passing through each of the intersection points exactly once; acquiring each of line segments making up the route as a provisional cross-section boundary line segment; acquiring a set of verification line segments by connecting intersection points between the color gamut boundary line segments and a plane intersecting with the provisional cross-section boundary line segment at a point other than the endpoints of the provisional cross-section boundary line segment; and acquiring the provisional cross-section boundary line segment as a cross-section boundary line segment if the provisional cross-section boundary line segment intersects with the set of verification line segments.

7. 发明申请

US20160134784A1 METHOD AND APPARATUS FOR OBTAINING CROSS-SECTION OF COLOR GAMUT, AND RECORDING MEDIUM 有权
标题翻译：用于获取彩色游戏横截面和记录介质的方法和装置
公开(公告)号：US20160134784A1
公开(公告)日：2016-05-12
申请号：US14929437
申请日：2015-11-02
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： H04N1/60
CPC分类号： H04N1/6061 , H04N1/00023 , H04N1/6033 , H04N1/6066
摘要： This is a method for obtaining a cross-section of a color gamut of an image forming apparatus by slicing the color gamut along a plane. This method includes the steps of obtaining gamut boundary line segments, obtaining cross-section boundary line segments, and obtaining endpoints. The gamut boundary line-segment obtaining step is to obtain gamut boundary line segments serving as baseline segments of a boundary of the color gamut. The cross-section boundary line-segment obtaining step is to obtain cross-section boundary line segments serving as baseline segments of a boundary of the cross-section. The endpoints obtained in the endpoint obtaining step are points of intersection of the gamut boundary line segments and the plane. The cross-section boundary line segments obtained in the cross-section boundary line-segment obtaining step are line segments making up a route that is the shortest route passing through all the endpoints only once.
摘要翻译：这是通过沿着平面切割色域来获得图像形成装置的色域的横截面的方法。该方法包括获得色域边界线段，获得横截面边界线段和获得端点的步骤。色域边界线段获取步骤是获得用作色域边界的基线段的色域边界线段。横截面边界线段获取步骤是获得用作横截面边界的基线段的横截面边界线段。在端点获取步骤中获得的端点是色域边界线段和平面的交点。在横截面边界线段获取步骤中获得的横截面边界线段是构成仅通过所有端点的最短路线一次的路线的线段。

8. 发明授权

US11493453B2 Belt inspection system, belt inspection method, and recording medium for belt inspection program 有权
公开(公告)号：US11493453B2
公开(公告)日：2022-11-08
申请号：US16911577
申请日：2020-06-25
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： G01N21/88 , G01N21/95 , G06T7/00 , G06T5/00
摘要： A belt inspection system to detect a belt defect of an intermediate transfer belt of an image forming apparatus using a first belt image obtained by photographing the intermediate transfer belt, performs a preprocessing on the first belt image to generate a second belt image, detects a candidate for the belt defect from the second belt image, and performs, in the preprocessing, a noise removal processing to remove a specific noise included in the first belt image, the specific noise including a noise caused by the photographing, a noise of a specific size based on an average size of the belt defect, and a band-shaped or streak-shaped noise extending in the width direction of the intermediate transfer belt.

9. 发明授权

US09191552B2 Image processing apparatus that performs color conversion and image processing method 有权
标题翻译：执行颜色转换和图像处理方法的图像处理装置
公开(公告)号：US09191552B2
公开(公告)日：2015-11-17
申请号：US14091425
申请日：2013-11-27
申请人： KYOCERA Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： G06T7/40 , H04N1/60
CPC分类号： H04N1/6016
摘要： An image processing apparatus in the present disclosure includes a color conversion processing unit, a modulation candidate creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation candidate creating unit creates, as modulation candidates, combinations of integer values obtained by rounding up or down the decimal fraction of each color component of a tentative output color value. The color value modulating unit selects a modulation candidate at random and performs modulation by replacing the tentative output color value with the selected modulation candidate. The output unit outputs the target image according to the color value obtained after the modulation.
摘要翻译：本公开的图像处理装置包括颜色转换处理单元，调制候选创建单元，颜色值调制单元和输出单元。颜色转换处理单元从目标图像的输入颜色值执行颜色转换为相应的输出颜色值，以获得暂定输出颜色值。调制候补创建单元创建通过向上或向下舍入初步输出颜色值的每个颜色分量的小数部分而获得的整数值的组合作为调制候选。色值调制单元随机选择调制候选，并通过用所选择的调制候补替换初步输出颜色值来进行调制。输出单元根据调制后获得的颜色值输出目标图像。

10. 发明授权

US08804193B2 Color conversion device, image-forming device, storing medium storing color conversion program and image-forming program and color conversion table 有权
标题翻译：颜色转换装置，图像形成装置，存储颜色转换程序的存储介质和图像形成程序和颜色转换表
公开(公告)号：US08804193B2
公开(公告)日：2014-08-12
申请号：US13625437
申请日：2012-09-24
申请人： Kyocera Document Solutions Inc.
发明人： Akira Nishizawa
IPC分类号： G06F15/00
CPC分类号： G06K15/02 , H04N1/6061 , H04N1/6075
摘要： A color conversion program including a grid point arranging part which arranges, between an input device represented by three values of RGB and four values of CMYK, grid points as correspondence of the RGB value of the input device and the CMYK value of the output device in a radial direction from a prescribed achromatic color axis to generate a radial color conversion table; and a color conversion table restructuring processing part which stacks, in the order of hue, a hue layer consisting of a surface of a hue and a surface of its complementary hue of the radial color conversion table to generate an orthogonal grid color conversion table in which the grids form an orthogonal grid.
摘要翻译：一种颜色转换程序，包括一个网格点排列部分，该部分在由RGB的三个值和CMYK的四个值表示的输入装置之间，将格点作为输入装置的RGB值与输出装置的CMYK值的对应关系从规定的无彩色轴线的径向方向生成径向颜色转换表; 以及颜色转换表重构处理部分，其以色调的顺序叠加由色调表面和径向颜色转换表的其互补色调的表面组成的色调层，以生成正交网格颜色转换表，其中网格形成正交网格。

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