公开(公告)号：US20190273842A1

公开(公告)日：2019-09-05

申请号：US16287511

申请日：2019-02-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mitsuhiro Ono ,  Moemi Urano

IPC: H04N1/60 ,  H04N1/00 ,  H04N9/64

Abstract: An image processing apparatus includes a control unit configured to control a conversion characteristic for converting image data based on a first color space into image data based on a second color space based on a difference between a specific color and a peripheral color of the specific color in the first color space, wherein the control unit changes a first conversion characteristic into a second conversion characteristic such that a color difference between the specific color and the peripheral color converted by the second conversion characteristic is greater than a color difference between the specific color and the peripheral color converted by the first conversion characteristic.

公开(公告)号：US20170150010A1

公开(公告)日：2017-05-25

申请号：US15423471

申请日：2017-02-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Rie Kajihara

IPC: H04N1/407 ,  G06K15/10 ,  H04N1/409 ,  H04N1/00 ,  H04N1/62

CPC classification number: H04N1/4072 ,  G06K15/102 ,  G06K15/1881 ,  H04N1/00188 ,  H04N1/2307 ,  H04N1/32571 ,  H04N1/4092 ,  H04N1/624 ,  H04N2201/0082 ,  H04N2201/0094

Abstract: An image processing device includes a first and a second image processing module including an image processing unit, and a connection module that is connected to the first and second image processing modules, and moves an image data from one image processing module to the other image processing module. At least one of the image processing modules includes a weighted average processing unit that calculates, based on a weighting coefficient included in an attribute value, a weighted average of a pixel value of the input image data and a image processed pixel value, and an output unit which outputs at least one of the image processed pixel value and the weighted-averaged pixel value.

公开(公告)号：US20170034396A1

公开(公告)日：2017-02-02

申请号：US15293057

申请日：2016-10-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Rie Kajihara ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto

IPC: H04N1/60 ,  G06K15/10 ,  H04N1/04

CPC classification number: H04N1/6008 ,  G06K15/102 ,  H04N1/04 ,  H04N1/60 ,  H04N1/603 ,  H04N2201/0094

Abstract: An image processing apparatus comprising: a generation unit configured to determine characteristic information associated with image data which expresses an image, to generate an attribute value based on the determination result, and to set the attribute value in an attribute value field included in the image data; and an image processing device configured to apply an image process to a pixel value set in a pixel value field included in the image data, based on the attribute value set in the attribute value field.

Abstract translation: 一种图像处理装置，包括：生成单元，被配置为确定与表示图像的图像数据相关联的特征信息，基于确定结果生成属性值，并将属性值设置在包括在图像数据中的属性值字段中 ; 以及图像处理装置，被配置为基于在属性值字段中设置的属性值，将图像处理应用于包括在图像数据中的像素值字段中的像素值。

公开(公告)号：US09007655B2

公开(公告)日：2015-04-14

申请号：US14076710

申请日：2013-11-11

Applicant: Canon Kabushiki Kaisha

Inventor： Ryosuke Iguchi ,  Nobutaka Miyake ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa ,  Senichi Saito

IPC: H04N1/48 ,  H04N1/46

CPC classification number: H04N1/46 ,  H04N1/4015 ,  H04N1/4051

Abstract: One dither mask having a highest spacial frequency is selected from a plurality of dither masks. Next, a granularity is obtained with reference to a table based on the selected dither mask and an ejection amount level per area. Moreover, a difference in granularity between adjacent areas is calculated with respect to all of the areas. A maximum value is obtained out of the obtained differences in granularity, and then, the maximum difference in granularity is compared with a determination threshold. When the maximum difference in granularity is the threshold or greater, it is determined whether or not a dither mask having a spacial frequency lower than that of the selected dither mask is stored in a memory. When there are dither masks having lower spacial frequencies, a dither mask having a spacial frequency lower by one level than that of the selected dither mask is selected.

Abstract translation: 从多个抖动掩模中选择具有最高空间频率的一个抖动掩模。 接下来，参考基于所选择的抖动掩模的表和每个区域的喷射量水平获得颗粒度。 此外，相对于所有区域计算相邻区域之间的粒度差异。 从获得的粒度差中获得最大值，然后将最大粒度差与判定阈值进行比较。 当粒度上的最大差值为阈值或更大时，确定具有低于所选择的抖动掩模的空间频率的抖动掩模是否存储在存储器中。 当存在具有较低空间频率的抖动掩模时，选择具有比所选择的抖动掩模低的一个等级的空间频率的抖动掩模。

公开(公告)号：US08965138B2

公开(公告)日：2015-02-24

申请号：US13933430

申请日：2013-07-02

Applicant: Canon Kabushiki Kaisha

Inventor： Yugo Mochizuki ,  Fumihiro Goto ,  Akihiko Nakatani ,  Okinori Tsuchiya ,  Takashi Nakamura ,  Takashi Fujita ,  Ayumi Sano ,  Mitsuhiro Ono ,  Hidetsugu Kagawa

IPC: G06K9/36 ,  G06T9/00 ,  H04N19/186 ,  H04N19/102 ,  H04N1/41 ,  H04N19/59 ,  H04N19/60

CPC classification number: H04N1/64 ,  G06T9/00 ,  H04N1/41 ,  H04N1/4115 ,  H04N1/642 ,  H04N19/102 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/60

Abstract: In an image processing apparatus for encoding image data and a method of controlling the same, whether an attribute of each of a plurality of areas in image data corresponds to an edge in an image based on the image data is determined, and one of a plurality of sub-sampling processes is selected according to the determination for each of the plurality of areas. Note that the plurality of sub-sampling processes can sub-sample color difference components of each of the plurality of areas by different processes. By the sub-sampling process selected as that corresponding to each of the plurality of areas, each of the plurality of areas is sub-sampled to encode the image data.

Abstract translation: 在对图像数据进行编码的图像处理装置及其控制方法中，确定图像数据中的多个区域中的每一个的属性是否对应于基于图像数据的图像中的边缘，并且确定多个区域中的一个 根据多个区域中的每一个的确定来选择子采样处理。 注意，多个子采样处理可以通过不同的处理对多个区域中的每一个的色差分量进行子采样。 通过选择为与多个区域中的每一个相对应的子采样处理，对多个区域中的每一个进行子采样以对图像数据进行编码。

公开(公告)号：US20220151483A1

公开(公告)日：2022-05-19

申请号：US17588367

申请日：2022-01-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mitsuhiro Ono ,  Ritsuya Tomita

IPC: A61B3/00 ,  G06T7/00 ,  G06T7/30 ,  H04N7/18 ,  G06T11/00 ,  G06K9/62 ,  G06T7/70 ,  A61B3/12 ,  A61B3/14 ,  A61B5/00 ,  A61B3/10 ,  A61B3/103

Abstract: An ophthalmic apparatus is provided that includes: an optical head unit; an information obtaining unit that, using a learned model obtained by learning information of a position relating to at least one of an eye to be examined and an optical head unit, obtains information of a position relating to at least one of an eye to be examined and the optical head unit from an image relating to an eye to be examined that is obtained using the optical head unit; and a drive controlling unit that controls driving of at least one of a supporter that supports a face of a subject and the optical head unit; in which, based on the obtained information of the position, the drive controlling unit controls the driving to cause at least one of the eye to be examined and the optical head unit to move to the position.

公开(公告)号：US20180336664A1

公开(公告)日：2018-11-22

申请号：US15975251

申请日：2018-05-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Mitsuhiro Ono

IPC: G06T5/00 ,  H04N5/232 ,  G06T7/11

Abstract: There is provide an image processing apparatus comprising memory storing instructions. When executed by one or more processors, the instructions cause the image processing apparatus to perform operations comprising acquiring a visible light image generated by shooting a subject with visible light and an invisible light image generated by shooting the subject with invisible light, generating a difference image that represents a difference in luminance between the visible light image and the invisible light image, detecting, from the invisible light image, a first region in which variation of luminance is within a first range, and detecting, from the difference image, a second region in which variation of luminance is within a second range, and smoothing luminance in the visible light image regarding a region included in both the first region and the second region.

公开(公告)号：US10063748B2

公开(公告)日：2018-08-28

申请号：US15293057

申请日：2016-10-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Rie Kajihara ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto

IPC: H04N1/60 ,  G06K15/10 ,  H04N1/04

CPC classification number: H04N1/6008 ,  G06K15/102 ,  H04N1/04 ,  H04N1/60 ,  H04N1/603 ,  H04N2201/0094

Abstract: An apparatus includes at least one processor configured to function as a dividing unit configured to divide at least part of an image, which is obtained by reading an original using a scanning device, into a plurality of processing blocks, a determination unit configured to determine an attribute value that specifies a processing content of one or more pixels in each processing block, of the plurality of processing blocks, divided by the dividing unit, in accordance with a coordinate in the original to which each processing block, of the plurality of processing blocks, corresponds, and an image processing unit configured to execute an image process to correct an input pixel value of a pixel in image data that represents the image and to output the corrected pixel value of the pixel, based on the attribute value determined by the determination unit.

公开(公告)号：US09030712B2

公开(公告)日：2015-05-12

申请号：US14076647

申请日：2013-11-11

Applicant: Canon Kabushiki Kaisha

Inventor： Senichi Saito ,  Akitoshi Yamada ,  Tomokazu Ishikawa ,  Fumitaka Goto ,  Nobutaka Miyake ,  Mitsuhiro Ono ,  Ryosuke Iguchi ,  Hidetsugu Kagawa ,  Junichi Nakagawa

IPC: H04N1/46

CPC classification number: H04N1/46 ,  H04N1/4015 ,  H04N1/4051

Abstract: Nozzles in a print head are arrayed in a density of 600 dpi. Moreover, a dither matrix has a size of 16 pixels×16 pixels in 600 dpi. The dither matrix is repeatedly used. In the meantime, each of rectangles represents an HS processing unit. WHS=3 pixels. As a consequence, the relationship of a least common multiple below is established in a nozzle array direction: 3×WD=16×WHS. In this case, the cycle of interference unevenness can be prolonged to the least common multiple between WD and WHS, that is, 48 pixels (3WD). In this manner, the size of the dither matrix is not an integral multiple of the HS processing unit width, so that the cycle of interference unevenness can be prolonged more than the size of the dither matrix. Thus, the interference unevenness can be hardly recognized.

Abstract translation: 打印头中的喷嘴以600dpi的密度排列。 此外，抖动矩阵在600dpi中具有16像素×16像素的大小。 重复使用抖动矩阵。 同时，每个矩形表示HS处理单元。 WHS = 3像素。 因此，在喷嘴排列方向上建立以下最小公倍数的关系：3×WD = 16×WHS。 在这种情况下，干扰不均匀的周期可以延长到WD和WHS之间的最小公倍数，即48像素（3WD）。 以这种方式，抖动矩阵的大小不是HS处理单元宽度的整数倍，使得干涉不均匀的周期可以比抖动矩阵的大小更长。 因此，难以识别干涉不均匀性。

公开(公告)号：US08899715B2

公开(公告)日：2014-12-02

申请号：US14070366

申请日：2013-11-01

Applicant: Canon Kabushiki Kaisha

Inventor： Senichi Saito ,  Ryosuke Iguchi ,  Nobutaka Miyake ,  Tohru Ikeda ,  Akitoshi Yamada ,  Mitsuhiro Ono ,  Fumitaka Goto ,  Hidetsugu Kagawa ,  Tomokazu Ishikawa ,  Junichi Nakagawa

IPC: B41J2/205 ,  B41J29/393 ,  B41J2/21 ,  H04N1/60

CPC classification number: B41J2/2052 ,  B41J2/2146 ,  H04N1/6038

Abstract: Provided are an image processing apparatus and an image processing method capable of reducing color unevenness due to variations in ejection characteristics among a plurality of nozzles when printing an image using a plurality of inks. To that end, a first image which is made up a color with noticeable color unevenness and similar colors is printed onto a print medium. The user then specifies a color and a nozzle position where color unevenness has occurred. On the basis of these results, parameters are set for a correction table referenced by an MCS processor. In so doing, it becomes possible to address the factor causing the color unevenness, and mitigate the effects of color unevenness in a focused way without incurring increases in processor load, memory requirements, or processing time as compared to the case of calibrating all lattice points.

Abstract translation: 提供了一种图像处理装置和图像处理方法，当使用多种油墨打印图像时，能够减少由于多个喷嘴之间的喷射特性的变化引起的颜色不均匀。 为此，在打印介质上打印出由具有明显的颜色不均匀性和相似颜色的颜色构成的第一图像。 然后，用户指定出现颜色不均匀的颜色和喷嘴位置。 基于这些结果，为MCS处理器引用的校正表设置参数。 在这样做时，与校准所有格子点的情况相比，可以解决导致颜色不均匀的因素，并且以聚焦方式减轻颜色不均匀的影响，而不会导致处理器负载，存储器要求或处理时间的增加 。