Canon Kabushiki Kaisha

Toppan Printing Co., Ltd.

Canon Research Kaisha

Takahiro Matsuura

Osamu Yamada

Takeshi Makita

Osamu Iwasaki

Kentaro Yano

Daigoro Kanematsu

Yoshiki Ishii

Yasuo Fukuda

Yoshitaka Sasaki

Naoji Ohtsuka

Yasuhiro Itoh

Masaharu Yamagishi

Keisuke Matsuno

Kento Watanabe

Takehito Fukushima

Chika Inoshita

Kazuma Taniwaki

An apparatus includes an acquisition unit configured to acquire a pair of first data and second data, the first data being obtained by imaging an object under a first environment, the second data being obtained by imaging the object under a second environment, and a processing unit configured to generate a three-dimensional lookup table by using the pair of the first data and the second data, the three-dimensional lookup table holding a condition for image processing to convert the first data into the second data.

Information processing apparatus, information processing method, and storage medium

A processing device comprises a processing unit configured to derive pixel values corresponding to respective parameters based on a pixel value of one captured image among a plurality of images captured by a capturing device with different parameters and a parameter corresponding to a respective one of the plurality of captured images, and an obtainment unit configured to obtain a characteristic in the capturing device based on a pixel value of respective one of the plurality of captured images and the derived pixel values.

Image processing device, image processing method, and non-transitory computer-readable storage medium

An image processing apparatus comprises one or more processors and one or more memories containing instructions that, when executed by the one or more processors, cause the one or more processors to function as a specification unit configured to, based on a parameter of an image capturing unit, specify a region captured by the image capturing unit in a display screen in which display panels are arrayed, and a correction unit configured to, based on a direction from a pixel in the region to the image capturing unit, obtain a correction amount of a luminance value of the pixel, and based on information for correcting an individual difference regarding a luminance of a display panel, correct the correction amount.

Image processing apparatus that corrects luminance values in pixels in a specified display region using a correction amount based on vectors between a pixel and an image capture apparatus

An image processing apparatus according to the present invention including a first acquisition unit configured to acquire color information of a first object obtained by capturing an image of the first object illuminated with light emitted by a light source, a second acquisition unit configured to acquire color information of a second object based on a condition determined by a direction of capturing the image of the first object, a direction of illuminating the first object with light from the light source, and a direction of a normal of the first object, and an output unit configured to output information according to the color information of the first object and the color information of the second object.

Image processing apparatus, method and storage medium, for object color evaluation

An electrode catalyst layer includes a catalyst material, a conductive carrier that supports the catalyst material, a polymer electrolyte containing a sulfonate group, and a fibrous material. The electrode catalyst layer includes a first surface configured to be in contact with the polymer electrolyte membrane, and a second surface facing away from the first surface. A first value is obtained by dividing a peak intensity of SO(m/z80) by a peak intensity of carbon (m/z12), and also dividing by a total thickness of the electrode catalyst layer, when the electrode catalyst layer is analyzed using time-of-flight secondary ion mass spectrometry (TOF-SIMS) at each of a plurality of positions in a thickness direction of the electrode catalyst layer from the first surface to the second surface. A rate of change of the first value with respect to a thickness of the electrode catalyst layer is &#x2212;0.0020 or less.

Electrode catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell

An image processing apparatus includes an acquisition unit configured to acquire a captured image obtained by imaging an imaging target using an imaging device, a generation unit configured to generate a display image to be displayed on a display unit, based on the captured image, a control unit configured to cause the display unit to display the display image, a specification unit configured to specify an evaluation area on the display image based on an instruction from a user, and a calculation unit configured to calculate an evaluation value in the evaluation area on the display image. The generation unit executes a filter process on the captured image and generates the display image.

Image processing apparatus, image processing method, and storage medium

A first table, which expresses a color reproducible characteristic of a first output device, is generated, and a second table, which expresses a color reproducible characteristic of a second output device, is generated. Color values of grid points of the first table are mapped to a color gamut of the second output device expressed by the second table. A third table, which expresses a relationship between color values of the first table after mapping processing and device values required to reproduce colors of the color values by the second output device, is generated. With reference to the third table, a profile, which expresses a relationship between color values of grid points arranged on a uniform color space, and device values required to reproduce colors of the color values by the second output device, is generated.

Color processing apparatus and method thereof

In order to obtain a highly accurate color processing condition, a user is allowed to easily adjust a weight for a patch image with poor reliability. Hence, a color processing apparatus inputs color data of a plurality of patches included in a color chart captured by an image sensing device. Patch images based on the color data are displayed on a monitor, and a user interface for inputting a user's instruction to adjust a weight value for each patch image is displayed on a monitor. A color processing condition of an image captured by the image sensing device is generated based on the weight value, the color data, and a target value of a color representation corresponding to each patch image.

A color processing apparatus for evaluating the gradation characteristic of a color conversion table that is used to convert signal values in input color space into signal values in output color space and has a plurality of grid points includes an acquisition unit configured to acquire signal values in the output color space corresponding to four adjacent grid points in the input color space through the color conversion table, a calculation unit configured to calculate a property of a tetrahedron formed by the signal values in the output color space, and an evaluation unit configured to evaluate a gradation characteristic of the color conversion table based on the property of the tetrahedron. The property of the tetrahedron may be the volume of the tetrahedron or the surface area of the tetrahedron.

Color processing apparatus and color processing method

A method for generating a color processing parameter used in color processing performed on an image captured by an imaging unit includes inputting data of an image captured by the imaging unit, inputting target data corresponding to the data, generating a pair of data and target data based on the data and the target data, and generating a color processing parameter for converting the data to the target data.

Color processing method and apparatus

In order to allow a user to arbitrarily set color processing parameters which determine the color reproduction characteristics of a digital camera according to user's preference, an image processing unit obtains color data by performing the same processing as that performed by the digital camera with respect to the sensed data of each color patch included in a color chart by using color processing parameters. A changing unit displays, on a display unit, a target data changing window which presents color data and the target data (the target color of color reproduction) of each color patch and allows the user to change the target data. A parameter editing unit edits color processing parameters so as to reduce the color difference between the changed target data and color data. A data input/output unit transmits the edited color processing parameters to the digital camera.

Image processing method and apparatus

A color chart and an illumination unevenness correcting chart are shot by a digital cameraunder the same illumination, and color data on a first image obtained by shooting the color chart and color data on a second image obtained by shooting the illumination unevenness correcting chart are input to a color processing parameter editing apparatusfor generating a color processing condition used in color processing to be performed on an image shot by the digital camera. A correcting unitcorrects the color data on the first image using the color data on the second image. Target color data corresponding to the corrected color data on the first image is input. A parameter optimizing unitgenerates a color processing condition for converting the corrected color data on the first image into the target color data.

Image processing method and image processing apparatus, and program thereof

An image obtained by being imaged by an imaging device and converted to color data using a color processing parameter is input and target color data corresponding to converted color data is input. Next, the color processing parameter is optimized based upon the color difference between the converted color data and target color data. When the optimization processing is executed, first optimization processing is executed for optimizing the color processing parameter using the first target color data being within a prescribed color gamut, and the converted color data corresponding to the target color data, and second optimization processing is executed for optimizing the color processing parameter using second target color data, which includes the target color data being out of the prescribed color gamut and is less than a prescribed threshold value, and the converted color data corresponding to the second target color data.

An image processing device for performing image correction of a scene by detecting whether a specific object is included in an input image of the scene, and that sets a correction parameter based on the detection result to correct the input image.

Image processing device, image processing method, storage medium, and program

Color data which is obtained by capturing an image of a color chart by an image capturing apparatus under a first light source, and depends on the first light source is acquired. Target data which is based on colorimetry data of the color chart under a second light source, and depends on the second light source is acquired. The target data which depends on the second light source is converted into target data which depends on the first light source. A color processing parameter corresponding to the first light source is generated based on the color data which depends on the first light source and the target data which depends on the first light source.

Growing community of inventors

Inagi, Japan

Takahiro Matsuura