公开(公告)号：US20240372957A1

公开(公告)日：2024-11-07

申请号：US18647828

申请日：2024-04-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： FUMINO MATSUI ,  YOSHINORI MIZOGUCHI ,  KOUTA MURASAWA ,  AKITOSHI YAMADA

IPC: H04N1/60 ,  G06T7/90 ,  G06V10/56

Abstract: An image processing apparatus comprises an acquisition unit configured to acquire a first color information group included in a first area of image data and a second color information group included in a second area of the image data, a correction unit configured to correct first color conversion information corresponding to the first area based on the first color information group, and correct second color conversion information corresponding to the second area based on the second color information group, a generation unit configured to generate third color conversion information based on the corrected first color conversion information and the corrected second color conversion information, and a conversion unit configured to color-convert color information of the first area and color information of the second area using the third color conversion information generated by the generation unit.

公开(公告)号：US20240364837A1

公开(公告)日：2024-10-31

申请号：US18643123

申请日：2024-04-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： FUMINO MATSUI ,  YOSHINORI MIZOGUCHI ,  KOUTA MURASAWA ,  AKITOSHI YAMADA

IPC: H04N1/60 ,  G06T7/90 ,  G06V10/56

CPC classification number: H04N1/6058 ,  G06T7/90 ,  G06V10/56 ,  G06T2207/10024

Abstract: An apparatus performs color conversion of color information of image data into color information of a different color gamut and determines whether color information representing substantially the same color as one piece of color information of a first group of color information in a first area of the image data is included in a second group of color information in a second area of the image data. In a case where a result of the determination indicates that first color information of the first group represents substantially the same color as second color information of the second group, a color difference between a first conversion color obtained by color conversion of the first color information using first color conversion information and a second conversion color obtained by color conversion of the second color information using second color conversion information is smaller than a predetermined value.

公开(公告)号：US20240046631A1

公开(公告)日：2024-02-08

申请号：US18363586

申请日：2023-08-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASAAKI OBAYASHI ,  AKITOSHI YAMADA ,  YOSHINORI MIZOGUCHI ,  HISASHI ISHIKAWA

IPC: G06V10/82 ,  G06V10/764 ,  G06N3/0464 ,  G06N3/084

CPC classification number: G06V10/82 ,  G06V10/764 ,  G06N3/0464 ,  G06N3/084

Abstract: A neural network system includes a separable convolution subnetwork. The separable convolution subnetwork includes a plurality of separable convolutional neural network (SCNN) layers arranged in a stack manner in sequence. Each of the plurality of SCNN layers applies a first grouped convolution to an input to the SCNN layer. An input to the first grouped convolution includes a plurality of channels, and the first grouped convolution is a spatial convolution which divides channels of an input to the first grouped convolution into groups in a channel-wise manner, convolves the grouped channels, and couples the convolved channels to generate an output.

公开(公告)号：US20240205353A1

公开(公告)日：2024-06-20

申请号：US18544000

申请日：2023-12-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： KOUTA MURASAWA ,  TAKASHI NAKAMURA ,  HIDETSUGU KAGAWA ,  AKIHIKO NAKATANI ,  AKITOSHI YAMADA ,  KENTARO YANO

IPC: H04N1/60

CPC classification number: H04N1/6063 ,  H04N1/603

Abstract: An image processing apparatus includes an input unit configured to input image data; a generation unit configured to generate image data having undergone color gamut conversion from the image data input by the input unit using a conversion unit configured to convert a color gamut of the image data input by the input unit into a color gamut of a device configured to output the image data; a correction unit configured to correct the conversion unit based on a result of the color gamut conversion; and a control unit configured to control execution of the correction by the correction unit for an object included in the image data input by the input unit.

公开(公告)号：US20230412751A1

公开(公告)日：2023-12-21

申请号：US18331427

申请日：2023-06-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： YOSHINORI MIZOGUCHI ,  HISASHI ISHIKAWA ,  AKITOSHI YAMADA

IPC: H04N1/40

CPC classification number: H04N1/40087

Abstract: A quantization unit executes quantization processing for first print data corresponding to a first scan using a first threshold matrix and a third threshold matrix, and executes the quantization processing for second print data corresponding to a second scan using a second threshold matrix and a fourth threshold matrix, and a first degree that a dot arrangement that is a result of quantization using the third threshold matrix and a dot arrangement that is a result of quantization using the fourth threshold matrix hold an exclusive relationship is smaller than a second degree that a dot arrangement that is a result of quantization using the first threshold matrix and a dot arrangement that is a result of quantization using the second threshold matrix hold the exclusive relationship.

公开(公告)号：US20240106964A1

公开(公告)日：2024-03-28

申请号：US18465126

申请日：2023-09-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKASHI NAKAMURA ,  KOUTA MURASAWA ,  AKITOSHI YAMADA ,  AKIHIKO NAKATANI ,  HIDETSUGU KAGAWA

IPC: H04N1/60

CPC classification number: H04N1/6025 ,  H04N1/6027

Abstract: An image processing apparatus obtains image data that is defined as a first color gamut, transforms the image data into image data that is defined as a second color gamut, using color transformation information, and when, as a result of transformation, a first pair of color values included in the image data is transformed into a second pair of color values that have a color difference that is not perceived as different colors, generates second color transformation information such that the first pair of color values is transformed into a third pair of color values that have a color difference that is perceived as different colors as a result of transformation using the second color transformation information. A saturation difference of the third pair of color values is larger than a saturation difference of the second pair of color values.

公开(公告)号：US20230391106A1

公开(公告)日：2023-12-07

申请号：US18326980

申请日：2023-05-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： TOMOKAZU ISHIKAWA ,  FUMITAKA GOTO ,  AKITOSHI YAMADA

IPC: B41J2/355 ,  B41J2/36

CPC classification number: B41J2/3558 ,  B41J2/362

Abstract: A data processing apparatus includes a plurality of heat-generating elements configured to apply different heating energies to a print medium in which a plurality of color development layers which develop colors different from each other upon receipt of the different heating energies are laminated. In addition, a printing apparatus includes: an obtaining unit configured to obtain a heat-generating characteristic of each of the plurality of heat-generating elements; and a deriving unit configured to derive a correction value for correcting print data based on a color development heating characteristic of each of the plurality of color development layers and the heat-generating characteristic of each heat-generating element, the print data causing each heat-generating element to generate the heating energy based on image data corresponding to a pixel.

公开(公告)号：US20230264486A1

公开(公告)日：2023-08-24

申请号：US18172072

申请日：2023-02-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： FUMITAKA GOTO ,  TOMOKAZU ISHIKAWA ,  AKITOSHI YAMADA

IPC: B41J2/335

CPC classification number: B41J2/335

Abstract: To prevent an insufficient development density of pixels with which a high-density image is recorded. Thermal energy to be applied to a pixel of interest is increased if a pixel immediately subsequent to the pixel of interest is one to which energy not causing heat propagation to the pixel of interest is applied.

公开(公告)号：US20250053351A1

公开(公告)日：2025-02-13

申请号：US18797443

申请日：2024-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： DAISUKE KOBAYASHI ,  HIROKAZU TANAKA ,  TSUKASA DOI ,  MAYUKO YAMAGATA ,  EIJI KOMAMIYA ,  YOSHINORI MIZOGUCHI ,  AKITOSHI YAMADA

IPC: G06F3/12 ,  G06T7/13

Abstract: The print unit includes a first print unit configured to be able to print a dot in a first region of each pixel of the object, and a second print unit configured to be able to print a dot in a second region of each pixel of the object. As a result of the processing by the dot arrangement unit, in first edge pixels in a first edge portion of the object, a ratio of arranging dots in the second regions is lower than a ratio of arranging dots in the first regions, and in second edge pixels in a second edge portion different from the first edge portion of the object, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions.

公开(公告)号：US20240394496A1

公开(公告)日：2024-11-28

申请号：US18638271

申请日：2024-04-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： HIRONORI NAKAMURA ,  YOSHINORI MIZOGUCHI ,  AKITOSHI YAMADA

IPC: G06K15/02

Abstract: There is provided an image processing apparatus that comprises at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores instructions that, when executed by the at least one processor, cause the at least one processor to generate first bitmap data and second bitmap data different from the first bitmap data based on PDL data, acquire, based on an analysis result of the first bitmap data, a gamut mapping table that associates the second bitmap data with a print color gamut, correct the second bitmap data based on the gamut mapping table, and generate quantized image data based on the corrected second bitmap data.