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1. 发明专利

JP2013198075A Recording method, recorder, image processing method, image processor and table generating method 有权
标题翻译：记录方法，记录器，图像处理方法，图像处理器和表生成方法
公开(公告)号：JP2013198075A
公开(公告)日：2013-09-30
申请号：JP2012065660
申请日：2012-03-22
申请人： Canon Inc , キヤノン株式会社
发明人： KISHINO MAYUKO , MIYAZAKI SHINICHI
IPC分类号： H04N1/46 , B41J2/525 , G06T1/00 , H04N1/60
CPC分类号： G06K15/1878 , H04N1/60 , H04N1/6058
摘要： PROBLEM TO BE SOLVED: To solve the problem that not only design man hour increases but also memory capacity increases since a color separation table is to be prepared for each recording mode when an output color reproduction region for each recording mode is used at the maximum.SOLUTION: A color separation table including a region (color reproduction holding region) which outputs an image of the same color to the same input value and a region (outside color reproduction holding region) which outputs an image of a color close to the same input value irrespective of the recording mode while a color reproduction region for each recording mode is used at the maximum is used. Thus, a color matching table can be made common between the recording modes.
摘要翻译：要解决的问题：为了解决不仅设计人工时间增加而且存储容量增加的问题，因为当最大限度地使用每个记录模式的输出颜色再现区域时，为每个记录模式准备分色表。解决方案：一种颜色分离表，其包括输出相同颜色的图像到相同输入值的区域（颜色再现保持区域）和输出接近相同输入的颜色的图像的区域（外部颜色再现保持区域）使用与记录模式无关的值，而使用每个记录模式的色彩再现区域最大。因此，可以在记录模式之间使颜色匹配表共同。

2. 发明专利

JP2012178824A Image processing apparatus and method of creating profile 有权
标题翻译：图像处理设备和创建配置文件的方法
公开(公告)号：JP2012178824A
公开(公告)日：2012-09-13
申请号：JP2012019854
申请日：2012-02-01
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI , KISHINO MAYUKO , MIYAZAKI TOSHIKI
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
CPC分类号： H04N1/603 , H04N1/6058
摘要： PROBLEM TO BE SOLVED: To carry out gamut mapping excellent in color reproduction irrespective of a color gamut shape of an output device by preventing brightness jump.SOLUTION: When a lattice point to be subjected to mapping processing is within a first division area 800 which is an area having brightness higher than that of a maximum saturation point C in color gamut 302 and having saturation higher than that of the point C, an intersection point Sth of a straight line connecting a lattice point P(x)in and the maximum saturation point C with an achromatic color axis is calculated, and a point S having brightness higher than the intersection point Sth is set as focal point color. Then, Labvalues of an intersection point P(x)out of a straight line connecting the target lattice point P(x)in and the focal point color S with the color gamut 302 serve as output color corresponding to the lattice point P(x)in. Thereby, it is possible to prevent that output color is divided into high brightness side color and low brightness side color with respect to the maximum saturation point in the color gamut 302, that is, occurence of a great difference in brightness.
摘要翻译：要解决的问题：通过防止亮度跳跃，进行与输出装置的色域形状无关的色彩再现的色域映射。解决方案：当要进行映射处理的格点处于第一划分区域800内时，该第一划分区域800是具有比色域302中的最大饱和点C的亮度高的区域，并且具有高于点的饱和度的区域 C，计算将晶格点P（x）in和最大饱和点C与无色色轴连接的直线的交点Sth，将亮度高于交点Sth的点S设定为焦点颜色。然后，交叉点P的值为 * a * b * 连接目标网格点P（x）的直线和焦点颜色S与色域302之间的直线（x）用作对应于格点P（x）in的输出颜色。因此，可以防止输出颜色相对于色域302中的最大饱和点被分成高亮度侧色和低亮度侧色，即，亮度差异的发生。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011130428A Image processing apparatus, method, and method of generating lookup table 有权
标题翻译：图像处理装置，方法和产生查询表的方法
公开(公告)号：JP2011130428A
公开(公告)日：2011-06-30
申请号：JP2010257301
申请日：2010-11-17
申请人： Canon Inc , キヤノン株式会社
发明人： URATANI MITSURU , YANAGIUCHI YUMI , MIYAZAKI SHINICHI , MIYAZAKI TOSHIKI , MORI HIROSHI , ISHIKAWA ZENICHI
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
CPC分类号： H04N1/6058
摘要： PROBLEM TO BE SOLVED: To provide a lookup table generating method that maintains an accuracy of color conversion, and generates a lookup table with a simple configuration. SOLUTION: Using a first lookup table for converting color data on a device-independent color space into color data on a device-dependent color space, output values are obtained in accordance with input values of the number greater than the number of grid points of the first lookup table. Then, using a second lookup table for converting color data on a device-dependent color space into color material color data for printing, the obtained output values are used as input values to obtain output values. Based on the output values obtained, a third lookup table having a given number of grid points greater than the number of grid points of the first lookup table is generated. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种维持颜色转换精度的查找表生成方法，并且生成具有简单配置的查找表。解决方案：使用第一个查找表将设备无关颜色空间上的颜色数据转换为依赖于设备的色彩空间的颜色数据，根据大于格数的数字的输入值获得输出值第一个查找表的点。然后，使用第二查找表将设备相关颜色空间上的颜色数据转换成用于打印的彩色材料颜色数据，将所获得的输出值用作输入值以获得输出值。基于获得的输出值，生成具有大于第一查找表的网格点数的给定数目的网格点的第三查找表。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2010195038A Image processor, recording device, and image processing method 审中-公开
标题翻译：图像处理器，记录装置和图像处理方法
公开(公告)号：JP2010195038A
公开(公告)日：2010-09-09
申请号：JP2010017402
申请日：2010-01-28
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI , YANAGIUCHI TOMOKAZU , FUJIMOTO YASUNARI
IPC分类号： B41J2/52 , B41J2/01 , G06T5/00 , H04N1/405
CPC分类号： H04N1/401 , H04N1/4052
摘要： PROBLEM TO BE SOLVED: To reduce density unevenness at a boundary part between recording areas caused by an error in dividing multi-valued recording data into a plurality of images and carrying out gradation lowering on each divided image in the stage of the multi-valued recording data in image processing.
SOLUTION: When carrying out gradation lowering of a data area on the lower side of the multi-valued recording data 403, the error generated in gradation lowering of the data area on the lower side is stored in an error storage area 901B. The error thus distributed and stored is used for gradation lowering carried out to data of an error application area 902B of the data area on the lower side of multi-valued recording data 404 related to the next scan. The error generated in the gradation lowering processing of multi-valued recording data is thus stored and used when carrying out gradation lowering of multi-valued recording data related to the next scan. Density is thereby stored by transferring the error between multi-valued recording data in scanning units. As a result, density unevenness and streaky unevenness are reduced to obtain a high-definition recorded image.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了减少由将多值记录数据分解为多个图像的误差引起的记录区域之间的边界部分处的浓度不均匀性，并且在多个图像的阶段中对每个分割图像执行灰度降低值图像处理中的记录数据。解决方案：当在多值记录数据403的下侧执行数据区域的灰度降低时，将下侧的数据区域的灰度降低中产生的误差存储在错误存储区域901B中。这样分配和存储的误差被用于对与下一次扫描相关的多值记录数据404的下侧的数据区域的错误应用区域902B的数据进行灰度降低。因此，当进行与下一次扫描相关的多值记录数据的灰度降低时，存储并使用多值记录数据的灰度降低处理中产生的误差。因此通过以扫描单位传送多值记录数据之间的误差来存储密度。结果，减小了浓度不均匀性和条纹不均匀性，从而获得高清晰度记录图像。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2010158810A Image processing apparatus, recording apparatus, and image processing method 有权
标题翻译：图像处理装置，记录装置和图像处理方法
公开(公告)号：JP2010158810A
公开(公告)日：2010-07-22
申请号：JP2009001634
申请日：2009-01-07
申请人： Canon Inc , キヤノン株式会社
发明人： FUJITA SHIGERU , ICHIMURA HIROSHI , FUJIMOTO YASUNARI , MIYAZAKI SHINICHI , NAKAMURA HIRONORI
IPC分类号： B41J2/52 , B41J2/01 , B41J2/205 , B41J2/525 , H04N1/405
CPC分类号： H04N1/1911 , H04N1/1913 , H04N1/405 , H04N2201/0082
摘要： PROBLEM TO BE SOLVED: To suppress an increase of a memory capacity in a configuration in which correlation is provided in distribution of multi-valued data at the time of binarizing the multi-valued data in image processing.
SOLUTION: Multi-valued image data stored in an input buffer 1801 is read out for each time of scans. The binarized result after color space conversion and image distribution are performed is sent to a print buffer, and at the same time is accumulated as recording information to perform processing of reflecting the same to the image distribution of the next pass. A density fluctuation due to recording position shift between planes or the like can also be restricted appropriately without providing pixels where dots are overlapped and recorded more than necessary. Along with this, the multi-valued image data at the stage of RGB is stored in the image buffer 1801, and data stored in the image buffer is read out to perform processing, whereby a capacity necessary for the image buffer is kept from changing even if the number of ink colors loaded in the recording apparatus increases. An increase of the image buffer capacity is thus suppressed, so that the printer can be constituted at low cost.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制在图像处理中对多值数据进行二值化时的多值数据的分布中提供相关性的配置中的存储器容量的增加。解决方案：对于每次扫描，读出存储在输入缓冲器1801中的多值图像数据。执行颜色空间转换和图像分配之后的二值化结果被发送到打印缓冲器，并且同时被累积为记录信息，以执行将其反映到下一遍的图像分布的处理。也可以适当地限制由于平面等之间的记录位置偏移引起的密度波动，而不需要提供点重叠并且记录得更多的像素。与此同时，在RGB阶段的多值图像数据被存储在图像缓冲器1801中，并且读出存储在图像缓冲器中的数据以进行处理，由此保持图像缓冲器所需的容量不变化甚至如果加载在记录装置中的墨水颜色的数量增加。因此抑制了图像缓冲器容量的增加，从而能够以低成本构成打印机。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010030258A Image processing apparatus and image processing method 审中-公开
标题翻译：图像处理装置和图像处理方法
公开(公告)号：JP2010030258A
公开(公告)日：2010-02-12
申请号：JP2008197770
申请日：2008-07-31
申请人： Canon Inc , キヤノン株式会社
发明人： NAKAMURA HIRONORI , FUJIMOTO YASUNARI , HORIKOSHI HIROKI , MIYAZAKI SHINICHI , ICHIMURA HIROSHI
IPC分类号： B41J2/52 , B41J2/01
摘要： PROBLEM TO BE SOLVED: To provide an image processing apparatus which outputs an image excellent not only in robustness relative to a density variation but in robustness relative to granularity, even when uniformity and smoothness of the image are important, at a high speed by a process having the minimized cost and load, and also to provide an image processing method. SOLUTION: The image processing apparatus uses a recording head corresponding to a plurality of channels and records an image in a recording medium. In the image processing apparatus, when a multi-value image data is distributed to a plurality of planes, the type of distribution limit information to be used can be selected according to each channel type. In this case, a first storage area 607 has stored information based on the recorded data of a plane subjected to a quantization process in a preceding manner. A second recording area 608 has stored data prepared in advance. This makes the channels in which nonuniform density or the like are conspicuous due to displacement between the planes and the channels in which they are inconspicuous, different in terms of distribution limit information to be used. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像处理装置，其输出不仅在强度方面相对于密度变化而且在相对于粒度的鲁棒性方面优异的图像，即使图像的均匀性和平滑度很重要，高速通过具有最小化成本和负载的过程，并且还提供图像处理方法。解决方案：图像处理装置使用与多个通道相对应的记录头，并将图像记录在记录介质中。在图像处理装置中，当多值图像数据被分配到多个平面时，可以根据每个通道类型来选择要使用的分布限制信息的类型。在这种情况下，第一存储区域607已经以前面的方式基于经过量化处理的平面的记录数据来存储信息。第二记录区608具有预先准备的数据。这使得由于平面和它们不显眼的通道之间的位移而使不均匀密度等显着的通道是不均匀的，在使用的分布限制信息方面是不同的。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010016698A Method for determining diffusion coefficient, information processing apparatus, and program 审中-公开
标题翻译：确定扩展系数的方法，信息处理装置和程序
公开(公告)号：JP2010016698A
公开(公告)日：2010-01-21
申请号：JP2008175904
申请日：2008-07-04
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI
IPC分类号： H04N1/405
摘要： PROBLEM TO BE SOLVED: To maintain dot diffusion property, and to suppress discontinuity in an error diffusion method.
SOLUTION: A quantization error occurs when quantizing a gradation value of each pixel of an input image in order to decrease the number of gradations of the input image. A method is disclosed for determining for each gradation value a diffusion coefficient to be used for distributing the quantization error to other pixels in accordance with an error diffusion method. The disclosed method includes: a determination step of determining, when two representative values specifying a quantization step including a gradation value I are defined as X and Y (X
摘要翻译：要解决的问题：为了保持点扩散性，并且抑制误差扩散方法中的不连续性。解决方案：当量化输入图像的每个像素的灰度值时发生量化误差，以便减少输入图像的灰度数。公开了一种用于根据误差扩散方法为每个灰度值确定用于将量化误差分配给其他像素的扩散系数的方法。所公开的方法包括：确定步骤，当指定包括灰度值I的量化步长的两个代表值被定义为X和Y（X

8. 发明专利

JP2009017133A Image processing method and recording apparatus 审中-公开
标题翻译：图像处理方法和记录装置
公开(公告)号：JP2009017133A
公开(公告)日：2009-01-22
申请号：JP2007175458
申请日：2007-07-03
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI
IPC分类号： H04N1/405 , B41J2/52
摘要： PROBLEM TO BE SOLVED: To provide a high-quality image across the picture as a whole, relating to an image processing method for recording a gradation image by a quantization method of concentration preserved type.
SOLUTION: When recording a gradation image by an error diffusion method, it is examined whether an average gradation value of peripheral pixels including an interested pixel is a threshold or smaller. If the result becomes dot ON, the quantization result is made to be dot OFF. Meanwhile, error calculation and error distribution to a non-processed pixel on the periphery are performed, assuming dot ON as, normally.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供整体图像上的高质量图像，涉及通过浓缩保存型的量化方法记录灰度图像的图像处理方法。解决方案：当通过误差扩散方法记录灰度图像时，检查包括感兴趣像素的周边像素的平均灰度值是否为阈值以下。如果结果变为点亮，则将量化结果设为点关。同时，对周边的非处理像素进行误差计算和误差分布，假定点ON为正常。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008073896A Image forming apparatus and method for controlling the same 审中-公开
标题翻译：图像形成装置及其控制方法
公开(公告)号：JP2008073896A
公开(公告)日：2008-04-03
申请号：JP2006253531
申请日：2006-09-19
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI
IPC分类号： B41J2/52 , G06T5/00 , H04N1/409
摘要： PROBLEM TO BE SOLVED: To provide an image-recording technology for forming a high-quality image not having stripes or density variations by utilizing a quasi-random number formed by another processing section.
SOLUTION: This image processor comprises a pattern storage means for storing a dot pattern by each gradation, a setting means for setting a plurality of sets of continuous bits during outputting of a random number generation circuit, a standard deviation deriving means for deriving a standard deviation value of each value designated by L bits in K bits of the random number generation circuit with respect to each set of the L bits by generating a random number for the number of times set by the random number generation circuit beforehand, and a determination means for determining the L bits for selecting the dot pattern from the derived result by the standard deviation deriving means.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像记录技术，用于通过利用由另一处理部分形成的准随机数来形成不具有条纹或密度变化的高质量图像。解决方案：该图像处理器包括用于通过每个灰度存储点阵图形的图案存储装置，用于在输出随机数生成电路期间设置多组连续比特的设置装置，用于导出随机数生成电路的标准偏差导出装置通过产生由随机数生成电路预先设定的次数的随机数，相对于每组L个比特的随机数产生电路的K比特中的L比特指定的每个值的标准偏差值，确定装置，用于根据标准偏差导出装置的导出结果确定用于选择点图案的L比特。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007081683A Image processing device and method therefor 有权
标题翻译：图像处理装置及其方法
公开(公告)号：JP2007081683A
公开(公告)日：2007-03-29
申请号：JP2005265529
申请日：2005-09-13
申请人： Canon Inc , キヤノン株式会社
发明人： MIYAZAKI SHINICHI
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
摘要： PROBLEM TO BE SOLVED: To solve the problem that observation conditions in output images are not uniform when observing the output images having a large size outputted from a large-sized printer or the like, and the observation conditions are changed due to a position in the output image since they are affected not only by a so-called light source but also by reflected light from surrounding objects such as a wall and a floor. SOLUTION: Environmental light information corresponding to each region of the image is inputted. Color matching is executed after deciding an observation condition parameter to each region on the basis of the inputted environmental light information. Consequently, it is possible to achieve high-accuracy color matching even in states under different observation conditions in the output image. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了解决在观察从大型打印机等输出的具有大尺寸的输出图像时输出图像的观察条件不均匀的问题，并且观察条件由于因为它们不仅受到所谓的光源的影响，还受到诸如墙壁和地板之类的周围物体的反射光的影响。
解决方案：输入与图像的每个区域对应的环境光信息。基于所输入的环境光信息，在对每个区域确定观察条件参数之后执行颜色匹配。因此，即使在输出图像中的不同观察条件下的状态下也可以实现高精度的色彩匹配。版权所有（C）2007，JPO＆INPIT

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