公开(公告)号：US20170313111A1

公开(公告)日：2017-11-02

申请号：US15482183

申请日：2017-04-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tetsuya Suwa ,  Shinjiro Hori ,  Tomokazu Ishikawa ,  Wakako Tanaka ,  Tohru Ikeda

IPC: B41J29/38 ,  H04N19/124

CPC classification number: B41J29/38 ,  G06T7/001 ,  G06T2207/20021 ,  G06T2207/30108 ,  H04N19/124

Abstract: An image processing apparatus includes a setting unit, an averaging unit, a determination unit, a quantization unit, an addition unit and a detection unit. The averaging unit divides image data based on a division size and phase set by the setting unit to subject pixels included in the resultant respective division regions to an averaging processing to calculate an average value. The quantization unit configured to obtain a quantization value for each of the plurality of pixels. The addition unit adds the quantization values, that are obtained so that at least one of the division size and the phase is different from the other, to generate addition image data. The determination unit determines the quantization threshold value so that the quantization threshold value in a case where the division size is a first size is higher than the quantization threshold value in a case where the division size is a second size larger than the first size.

公开(公告)号：US20170287125A1

公开(公告)日：2017-10-05

申请号：US15458386

申请日：2017-03-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Wakako Tanaka ,  Shinjiro Hori ,  Tetsuya Suwa ,  Tomokazu Ishikawa

IPC: G06T7/00 ,  G06K9/00 ,  G06K9/62 ,  G06K9/03

Abstract: A signal processing apparatus includes an acquisition unit that acquires input data and detection target data, a noise strength setting unit that sets a noise strength K used to a predetermined stochastic resonance processing and a stochastic resonance processing unit that performs the predetermined stochastic resonance processing and outputs processed data. The predetermined stochastic resonance processing is a processing based on a formula in which processed data J(x) is represented by I(x), the noise strength K and the threshold value T and the processed data J(x) corresponds to a result in a case where M is infinite in the following formula, J  ( x ) = 1 M  ∑ m = 1 M  j  ( x , m ) . The noise strength setting unit sets the noise strength based on a function of a correlation coefficient between the result of the predetermined stochastic resonance processing and the detection target data and the noise strength K.

公开(公告)号：US20170287115A1

公开(公告)日：2017-10-05

申请号：US15470024

申请日：2017-03-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tomokazu Ishikawa ,  Wakako Tanaka ,  Tetsuya Suwa ,  Shinjiro Hori

IPC: G06T5/00 ,  H04N5/232 ,  G06T5/50 ,  G06K9/03 ,  H04N5/357

CPC classification number: G06T5/002 ,  B41J2/2132 ,  B41J2/2139 ,  B41J2/2142 ,  G06K9/036 ,  G06T5/003 ,  G06T5/006 ,  G06T5/007 ,  G06T5/008 ,  G06T5/50 ,  G06T2207/20076 ,  G06T2207/30144 ,  H04N1/40 ,  H04N1/58 ,  H04N1/6041 ,  H04N5/23232 ,  H04N5/357

Abstract: An image processing apparatus has a stochastic resonance processing unit executing a stochastic resonance processing to obtain a result. The result corresponds to a result that is calculated in a case where each of a plurality of pixel signals constituting reading image data is added noise and subjected to a binary processing and a plurality of results obtained by parallelly performing above step are synthesized and the parallel number is infinite. The stochastic resonance processing unit sets, with regard to a pixel signal as a processing target among the plurality of pixel signals, at least one of a strength of the noise and a threshold value used for the binary processing based on a pixel signal of the input image data corresponding to the pixel signal.

公开(公告)号：US09716809B2

公开(公告)日：2017-07-25

申请号：US14167417

申请日：2014-01-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kouta Murasawa ,  Akitoshi Yamada ,  Nobutaka Miyake ,  Tomokazu Ishikawa ,  Shinjiro Hori ,  Fumitaka Goto ,  Ryosuke Iguchi ,  Hidetsugu Kagawa ,  Hiromitsu Akiba ,  Senichi Saito ,  Junichi Nakagawa

IPC: G06K15/02 ,  H04N1/40 ,  H04N1/58 ,  H04N1/64

CPC classification number: H04N1/40068 ,  H04N1/58 ,  H04N1/642

Abstract: In low-resolution processing (reduction processing) in which input image data is separated into character print data and image print data to generate print data of lower resolution than that of the input image data, if a plurality of pixels is simply reduction-processed to one pixel, color of a color image surrounding a character may change. In an image processing method, calculation for performing reduction processing so that the plurality of pixels in the input image data corresponds to one pixel in the print data is performed as follows. A ratio of using a pixel value of a character attribute pixel in the calculation is set to 0, or set smaller than a ratio of using a pixel value of an image attribute pixel. As a result, a change in the color of the color image surrounding the character can be prevented.

公开(公告)号：US20170001446A1

公开(公告)日：2017-01-05

申请号：US15192229

申请日：2016-06-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hidetsugu Kagawa ,  Yumi Yanai ,  Shinjiro Hori ,  Tetsuya Suwa ,  Tomokazu Ishikawa ,  Wakako Tanaka ,  Tohru Ikeda

IPC: B41J2/21 ,  G06K15/10 ,  G06K9/38 ,  H04N1/00 ,  G06K9/46

CPC classification number: B41J2/2142 ,  B41J2/2146 ,  G06K9/38 ,  G06K9/46 ,  G06K9/4642 ,  H04N1/00795 ,  H04N2201/0094

Abstract: An image processing apparatus has: a setting unit configured to set a division way for dividing an image data; a processing unit configured to divide the image data in accordance with the division way, and perform a predetermined process on each of resulting division areas; and an extracting unit configured to extract a unique portion from the image data. The predetermined process includes an averaging process on each of division areas obtained by dividing the image data in accordance with the division way, a quantization process for quantizing values obtained by the averaging process, and an addition process for adding values obtained by differentiating the division way. The setting unit sets a first division way for the predetermined process for a first area that is associated with the device in occurrence position of the unique portion and a second division way for a second area other than the first area.

Abstract translation: 一种图像处理设备具有：设置单元，被配置为设置用于划分图像数据的分割方式; 处理单元，被配置为根据分割方式划分图像数据，并且对每个所得到的分割区域执行预定处理; 以及提取单元，被配置为从图像数据中提取唯一部分。 该预定处理包括对根据分割方式分割图像数据而获得的每个分割区域的平均处理，用于对通过平均处理获得的值进行量化的量化处理，以及用于将通过分割除法获得的值相加的加法处理 。 所述设定单元对于与所述唯一部分的出现位置中的所述装置相关联的第一区域和所述第一区域以外的第二区域的第二划分方式，设定所述预定处理的第一分割方式。

公开(公告)号：US09350903B2

公开(公告)日：2016-05-24

申请号：US14332232

申请日：2014-07-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Fumitaka Goto ,  Hidetsugu Kagawa ,  Senichi Saito ,  Nobutaka Miyake ,  Shinjiro Hori ,  Akitoshi Yamada ,  Ryosuke Iguchi ,  Tomokazu Ishikawa ,  Kouta Murasawa ,  Hiromitsu Akiba ,  Junichi Nakagawa

IPC: B41J29/393 ,  H04N1/60 ,  B41J2/195 ,  B41J2/21

CPC classification number: H04N1/6047 ,  B41J2/195 ,  B41J2/2142 ,  B41J2/2146 ,  H04N1/6036

Abstract: Because the ejection state of a printing element in a printing apparatus may vary at all times, an inspection item for inspecting a printed image may be set in consideration of the ejection state of the printing element. An inspection item for inspecting a printed image may be set based on information including a temperature characteristic of a printing head and a state of ink such as an elapsed time from the last ejection. This allows image inspection that matches with variations in the ejection state of the printing element.

Abstract translation: 因为打印装置中的打印元件的喷射状态总是可以改变，所以可以考虑打印元件的喷射状态来设置用于检查打印图像的检查项目。 用于检查打印图像的检查项目可以基于包括打印头的温度特性和诸如从最后喷射的经过时间的墨水状态的信息来设置。 这允许与打印元件的喷射状态的变化匹配的图像检查。

公开(公告)号：US20160031249A1

公开(公告)日：2016-02-04

申请号：US14807649

申请日：2015-07-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiromitsu Akiba ,  Nobutaka Miyake ,  Shinjiro Hori ,  Junichi Nakagawa

IPC: B41J29/38

CPC classification number: B41J2/2146 ,  B41J2/2135

Abstract: A printing apparatus and a printing method are provided by which information printed on a printing medium can be used to appropriately control an image printing while allowing the entire printing apparatus to have a simpler and smaller configuration. An image is printed on a conveyed sheet by yellow, black, cyan, and magenta inks ejected from printing heads. The yellow ink ejected from the printing head is used to print an image in which information for sensing a sheet conveying amount is embedded by an electronic watermark. The information is read by a sensor unit. Based on the reading result, a printing control is performed. The printing head to eject yellow ink is positioned at an upstream side in a sheet conveying direction than the sensor unit. The printing head to eject black ink is positioned at a downstream side in the sheet conveying direction than the sensor unit.

Abstract translation: 提供了一种打印设备和打印方法，通过该打印设备和打印方法，可以使用打印介质上的信息来适当地控制图像打印，同时允许整个打印设备具有更简单和更小的配置。 通过从打印头喷出的黄色，黑色，青色和洋红色墨水将图像印刷在传送的片材上。 从打印头喷出的黄色墨水用于打印通过电子水印嵌入用于感测纸张传送量的信息的图像。 信息由传感器单元读取。 基于读取结果，执行打印控制。 喷出黄色墨水的打印头位于比传感器单元更薄的纸张输送方向的上游侧。 喷出黑色墨水的打印头位于片材传送方向上比传感器单元更靠下游的一侧。

公开(公告)号：US09210292B2

公开(公告)日：2015-12-08

申请号：US14495736

申请日：2014-09-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobutaka Miyake ,  Junichi Nakagawa ,  Akitoshi Yamada ,  Tomokazu Ishikawa ,  Shinjiro Hori ,  Fumitaka Goto ,  Ryosuke Iguchi ,  Hidetsugu Kagawa ,  Kouta Murasawa ,  Hiromitsu Akiba ,  Senichi Saito

IPC: G06K15/00 ,  H04N1/40

CPC classification number: H04N1/40 ,  H04N1/4051

Abstract: Provided is a quantization processing method using dither patterns that make it possible to obtain a dot array having excellent dispersibility even in the case of a single color or mixed color inks. For this purpose, first and second dither patterns are prepared in order to respectively quantize multivalued data for a first ink to different pieces of binary data, respectively. Also, third and fourth dither patterns are prepared in order to respectively quantize multivalued data for a second ink to different pieces of binary data. Further, on the basis of a combination of the multivalued data on the first ink and the multivalued data on the second ink, a quantization unit for the first ink, and a quantization unit for the second ink are determined.

Abstract translation: 提供了一种使用抖动图案的量化处理方法，即使在单色或混合彩色墨水的情况下也可以获得具有优异分散性的点阵列。 为此，准备第一和第二抖动图案以便分别将第一墨水的多值数据量化到不同的二进制数据片段。 此外，准备第三和第四抖动图案以便将第二墨水的多值数据分别量化到不同的二进制数据片段。 此外，基于第一墨水上的多值数据和第二墨水上的多值数据的组合，确定用于第一墨水的量化单元和用于第二墨水的量化单元。

公开(公告)号：US20140078051A1

公开(公告)日：2014-03-20

申请号：US14084753

申请日：2013-11-20

Applicant: Canon Kabushiki Kaisha

Inventor： Shinjiro Hori ,  Kouta Murasawa

IPC: G06T5/00 ,  G06F3/01

CPC classification number: G06T5/00 ,  G06F3/01 ,  G06T5/40 ,  G11B27/034 ,  G11B27/34 ,  H04N9/73

Abstract: According to this invention, image processes are classified into a plurality of categories, and the result of processes belonging to each category is written in an intermediate buffer prepared for the category. The order of categories is determined in advance, and an output from a process of a preceding category serves as an input to a process of a succeeding category. The preceding category includes image processes such as automatic correction requiring no quick response. The succeeding category includes image processes such as manual correction requiring a quick response.

Abstract translation: 根据本发明，图像处理被分类为多个类别，并且属于每个类别的处理的结果被写入为该类别准备的中间缓冲器。 类别的顺序被预先确定，并且来自前一类别的处理的输出用作对后续类别的处理的输入。 上述类别包括图像处理，例如不需要快速响应的自动校正。 后续类别包括需要快速响应的图像处理，如手动校正。

公开(公告)号：US12118786B2

公开(公告)日：2024-10-15

申请号：US17533708

申请日：2021-11-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takayuki Yamada ,  Kazuya Ogasawara ,  Shinjiro Hori

IPC: G06V20/00 ,  G06V10/94 ,  G06V20/30 ,  G06V40/16

CPC classification number: G06V20/30 ,  G06V10/945 ,  G06V40/161

Abstract: A first designation unit configured to designate a first image group, a second designation unit configured to designate a second image group, an analysis unit configured to analyze an image included in the second image group, a determination unit configured to determine a reference for selecting an image from the first image group, based on a result of analyzing the image included in the second image group, a selection unit configured to select a third image group from the first image group, based on the reference, and a changing unit configured to accept a change in a parameter that is obtained from the third image group selected by the selection unit are included and to produce a changed parameter. The selection unit is configured to select an image from the first image group by use of the changed parameter.