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    Image processing apparatus, image processing method, image processing program, and storage medium
    31.
    再颁专利
    Image processing apparatus, image processing method, image processing program, and storage medium 有权
    图像处理装置，图像处理方法，图像处理程序和存储介质

    公开(公告)号：USRE45267E1

    公开(公告)日：2014-12-02

    申请号：US13901993

    申请日：2013-05-24

    Applicant: Canon Kabushiki Kaisha

    Inventor： Fumitaka Goto ,  Kentaro Yano ,  Fumihiro Goto ,  Masao Kato ,  Akitoshi Yamada ,  Tetsuya Suwa ,  Mitsuhiro Ono ,  Arata Miyagi ,  Yusuke Hashii

    IPC: G06K15/00

    CPC classification number: H04N1/40062

    Abstract: There is disclosed an image processing apparatus which applies an adjusting process to an image that includes a pixel to be processed. The image processing apparatus extracts an image area with a predetermined size including the pixel to be processed. The apparatus calculates a variation associated with the pixel to be processed from signal values of pixels included in the image area. The apparatus calculates a variation time count in the image area from the signal values of the pixels included in the image area. The apparatus calculates adjusting levels Fz1, Fz2, and Fe from the variation time count and the variation using a definition unit which defines correspondence among the variation time count, the variation, and the adjusting levels, and applies an adjusting process to a signal value of the pixel to be processed by the calculated adjusting levels. Note that the definition unit defines the correspondence so that the adjusting levels Fz1, Fz2, and Fe progressively change in accordance with different variation time counts or different variations.

    Abstract translation: 公开了一种对包括要处理的像素的图像应用调整处理的图像处理装置。 图像处理装置提取具有包括要处理的像素的预定尺寸的图像区域。 该装置根据包括在图像区域中的像素的信号值计算与要处理的像素相关联的变化。 该装置根据包括在图像区域中的像素的信号值来计算图像区域中的变化时间计数。 该装置使用定义单位从变化时间计数和变化计算调整水平Fz1，Fz2和Fe，该定义单元定义变化时间计数，变化和调整水平之间的对应关系，并且将调整处理应用于 要通过计算的调整级别处理的像素。 注意，定义单元定义对应关系，使得调整水平Fz1，Fz2和Fe根据不同的变化时间计数或不同的变化逐渐改变。

    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD
    32.
    发明申请
    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD 有权
    图像处理设备，打印设备和图像处理方法

    公开(公告)号：US20140139855A1

    公开(公告)日：2014-05-22

    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: H04N1/46

    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。

    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD
    33.
    发明申请
    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD 有权
    图像处理设备，打印设备和图像处理方法

    公开(公告)号：US20140139854A1

    公开(公告)日：2014-05-22

    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。

    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD
    34.
    发明申请
    IMAGE PROCESSING APPARATUS, PRINTING APPARATUS, AND IMAGE PROCESSING METHOD 有权
    图像处理设备，打印设备和图像处理方法

    公开(公告)号：US20140139853A1

    公开(公告)日：2014-05-22

    申请号：US14076622

    申请日：2013-11-11

    Applicant: Canon Kabushiki Kaisha

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

    IPC: G06K15/02

    CPC classification number: G06K15/02 ,  H04N1/405 ,  H04N1/52

    Abstract: When an input image is shifted by 640 pixels from a test pattern with reference to the position of a nozzle, the remainder is obtained by dividing 640 pixels by pixels of the dither matrix in an x direction. For example, when the size of the dither matrix in the x direction is 256 pixels, the dither matrix is shifted by 128 pixels in a direction reverse to the x direction. In this manner, the phase of the dither matrix at the time of the quantization during test pattern printing matches the phase of the dither matrix at the time of the quantization during input image printing. Consequently, unevenness of the dither matrix at a position N becomes the same in both of the test pattern and the input image. The HS correction to density unevenness caused by the unevenness of the dither matrix becomes suitable for the input image.

    Abstract translation: 当输入图像相对于喷嘴的位置从测试图案偏移了640个像素时，通过在x方向上划分抖动矩阵的640个像素来获得剩余部分。 例如，当x方向上的抖动矩阵的大小为256像素时，抖动矩阵沿与x方向相反的方向偏移128像素。 以这种方式，在测试图案打印期间的量化时的抖动矩阵的相位匹配输入图像打印期间的量化时的抖动矩阵的相位。 因此，在位置N处的抖动矩阵的不均匀性在测试图案和输入图像两者中都是相同的。 由抖动矩阵的不均匀度引起的对浓度不均匀性的HS校正变得适合于输入图像。

    IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGING METHOD, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
    35.
    发明申请
    IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGING METHOD, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20190082092A1

    公开(公告)日：2019-03-14

    申请号：US16125525

    申请日：2018-09-07

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Mitsuhiro Ono ,  Moemi Urano

    IPC: H04N5/235 ,  H04N5/232 ,  G06T5/50

    Abstract: Settings desired by a user may be difficult when the user specifies an area (photometry area) for setting exposure for a combined image acquired through wide dynamic range (WDR) imaging. When a plurality of images is combined and output as a combined image, an imaging apparatus acquires information indicating a plurality of areas in the combined image having input and output characteristics different from each other together with the combined image, allows a user to set a detection area based on the acquired information, acquires an exposure parameter based on the setting, and executes imaging operation.

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