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21. 发明专利

JP2006217428A Image processing method, image forming apparatus, computer program, and storage medium 审中-公开
标题翻译：图像处理方法，图像形成装置，计算机程序和存储介质
公开(公告)号：JP2006217428A
公开(公告)日：2006-08-17
申请号：JP2005029825
申请日：2005-02-04
申请人： Canon Inc , キヤノン株式会社
发明人： ISHIKAWA ZENICHI
IPC分类号： H04N1/405 , G06T5/00
摘要： PROBLEM TO BE SOLVED: To provide an optimization method for an error diffusion coefficient capable of obtaining an excellent half-tone result for each input density region.
SOLUTION: This image processing method performs error diffusion processing for image data, and forms an pseudo half-tone image. The method is provided with an error calculation process which binarizes a pixel value of multiple values of a pixel interpolated in the image data, and calculates an error value by this binarization; a selection process for selecting one out of a plurality of sets of coefficients for diffusing the error into other pixels based on the difference between the pixel value of the multiple values and the binarized pixel value; an error diffusion process for diffusing the error calculated in the error calculation process into the other pixel using the selected set of coefficients; and a feedback process for feeding the error diffused in the error diffusion process back for binarization with respect to the following pixel being interpolated.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够获得每个输入密度区域的优异的半色调结果的误差扩散系数的优化方法。解决方案：该图像处理方法对图像数据执行误差扩散处理，并形成伪半色调图像。该方法具有将图像数据中插入的像素的多个像素值二值化的误差计算处理，并且通过该二值化来计算误差值; 选择处理，用于基于多个值的像素值和二值化像素值之间的差异，选择用于将误差扩散到其他像素的多组系数中的一个; 误差扩散处理，用于使用所选择的一组系数将在误差计算处理中计算的误差扩散到另一个像素; 以及反馈处理，用于将误差扩散处理中扩散的误差馈送回二进制，以便相对于被内插的以下像素。版权所有（C）2006，JPO＆NCIPI

22. 发明专利

JP2006048349A Data processor and image processing method 有权
标题翻译：数据处理器和图像处理方法
公开(公告)号：JP2006048349A
公开(公告)日：2006-02-16
申请号：JP2004228013
申请日：2004-08-04
申请人： Canon Inc , キヤノン株式会社
发明人： ISHIKAWA ZENICHI
IPC分类号： G06F17/17
摘要： PROBLEM TO BE SOLVED: To provide a data processor for removing noise components from data by a simple calculation method in order to estimate data on an optional point from measured data including noises, and also to provide an image processing method.
SOLUTION: The data processing method is provided for smoothing a plurality of data corresponding to respective reference values, wherein the method comprises: a step (S103) where a plurality of data are made to correspond to respective reference values and successively plotted in the order of respective reference values and an inclination An-1 of the (n-1)th segment connecting a plot point of the (n-2)th data Dn-2 and a plot point of the (n-1)th data Dn-1 is calculated; a step (S105) where an inclination An+1 of the (n+1)th segment connecting a plot point of the n-th data Dn and a plot point of the (n+1)th data Dn+1 is calculated ; and a step (S106) where the n-th data are corrected so that an inclination An of the n-th segment connecting the plot point of the (n-1)th data Dn-1 and the plot point of the n-th data Dn becomes a summation average between the inclinations An+1 and An-1 .
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于通过简单的计算方法从数据中去除噪声分量的数据处理器，以从包括噪声的测量数据估计可选点上的数据，并且还提供图像处理方法。解决方案：提供数据处理方法，用于平滑对应于各个参考值的多个数据，其中该方法包括：步骤（S103），其中使多个数据对应于各个参考值，并依次绘制在连接第（n-2）数据Dn-2的绘图点和第（n-1）个数据的绘图点的第（n-1）段的各个参考值的顺序和倾斜度An-1 计算Dn-1; 计算连接第n数据Dn的绘图点和第（n + 1）数据Dn + 1的绘图点的第（n + 1）段的倾斜度An + 1的步骤（S105）以及步骤（S106），其中第n个数据被校正，使得连接第（n-1）个数据Dn-1的绘图点和第n个数据Dn-1的绘图点的第n个段的倾斜度An 数据Dn变为倾角An + 1和An-1之间的求和平均值。版权所有（C）2006，JPO＆NCIPI

23. 发明专利

JP2005159777A Method and system for creating color separation lookup table 审中-公开
标题翻译：用于创建颜色分离查询表的方法和系统
公开(公告)号：JP2005159777A
公开(公告)日：2005-06-16
申请号：JP2003396381
申请日：2003-11-26
申请人： Canon Inc , キヤノン株式会社
发明人： ISHIKAWA ZENICHI
IPC分类号： B41J2/525 , G06T1/00 , H04N1/46 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To provide a method and system for creating a color separation lookup table capable of efficiently creating gray lines of the color separation lookup table with high accuracy.
SOLUTION: A flowchart of creating gray lines includes: a step S1300 of preparing basic gray line data; a step S1301 of creating image data of a chart; a step S1302 of printing the created image data of the chart with a color image output device, and applying colorimetric processing to the printed chart and capturing the result; a step S1303 of setting a desired hue to the gray line, and generating a gray line target on the basis of the setting value and white data of paper and black point data of the captured colorimetric data; a step S1304 of deciding an L*a*b* value obtained by the colorimetry for obtaining the gray line target by each grid and using C, M, Y and K values corresponding to the decided value for the gray line data of the grid; and a step S1305 of merging the gray line data into the color separation 3D lookup table.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于创建能够高精度地有效地创建色分离查找表的灰线的色分离查找表的方法和系统。
解决方案：创建灰线的流程图包括：准备基本灰线数据的步骤S1300; 制作图表的图像数据的步骤S1301; 利用彩色图像输出装置打印所生成的图表的图像数据的步骤S1302，对打印图表进行比色处理，拍摄结果; 根据设定值和捕获的比色数据的纸和黑点数据的白色数据生成灰线对象的步骤S1303，确定通过比色法获得的用于获得每个网格的灰线目标的L * a * b *值的步骤S1304，并使用对应于网格的灰线数据的确定值的C，M，Y和K值; 以及将灰线数据合并到分色3D查找表中的步骤S1305。版权所有（C）2005，JPO＆NCIPI

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