Canon Kabushiki Kaisha

Kaori Tajima

Shinya Hirai

Yu Narita

Kosuke Nobuoka

Shun Matsui

Kosuke Nobuka

An image processing apparatus has: a WB processing circuit that performs a plurality of kinds of WB processing for an input image that is undeveloped and captured by an image capturing element in which pixels of a plurality of colors are arranged in a mosaic pattern under a predetermined rule; filter circuits that perform color interpolation processing by referring to the input image and a signal subjected to WB processing and generate images of respective color signals whose color ratio is equivalent to that of the input image; and resizing circuits that resize the generated images.

Image processing apparatus and image processing method

A control method for an image processing apparatus includes setting a virtual light source, analyzing characteristics of a partial region of a subject in an input image acquired through image capturing, smoothing at least a portion of the input image on the basis of information about a result of the analysis, generating, on the basis of the smoothed input image, reflected color components in a case where the subject is irradiated with light from the virtual light source, and performing correction based on the reflected color components on the input image.

Image processing apparatus, control method for image processing apparatus, image pickup apparatus, and non-transitory computer-readable storage medium to control reflected color components of input image

An image processing apparatus that causes an effect of emission of virtual light to be applied in a captured image includes an acquisition unit, a determination unit, and a correction unit. The acquisition unit is configured to acquire ambient light distribution information in the captured image. The determination unit is configured, based on the ambient light distribution information acquired by the acquisition unit, to determine a color characteristic of a virtual light source that is a light source of the virtual light. The correction unit is configured, based on the color characteristic of the virtual light source determined by the determination unit, to make a correction by which the effect of the virtual light is applied in a partial area of the captured image.

Image processing apparatus, control method for image processing apparatus, and storage medium having correction of effect of virtual light source

An image processing apparatus includes a setting unit configured to set a virtual light source for a captured image; a brightness correction unit configured to correct brightness of a partial region of an object using the virtual light source set by the setting unit; an attribute detection unit configured to detect an attribute of the partial region; a glossy component generation unit configured to generate a glossy component that is to be applied to the partial region, according to the attribute of the partial region detected by the attribute detection unit; and a glossy appearance correction unit configured to correct a glossy appearance of the partial region using the glossy component generated by the glossy component generation unit.

Image processing apparatus, image processing method, and storage medium

An image processing apparatus includes a separation unit that separates a high-frequency component and a low-frequency component, a first generation unit that generates a color signal component from the low-frequency component, a second generation unit that generates a color signal component from the low-frequency component, a third generation unit that generates a color signal component used in common for a luminance signal and a chrominance signal, a first tone conversion unit that performs first tone conversion processing on an output of the third generation unit, a color-and-luminance separation unit that generates a luminance signal and a chrominance signal, a second tone conversion unit that performs a second tone conversion on the high-frequency component, and a combining unit that combines outputs of the color-and-luminance separation unit and the second tone conversion unit.

Image processing apparatus, image processing method, and storage medium for performing tone conversion

The image processing apparatus includes a first generation unit that generates a color signal component for a luminance signal, a second generation unit that generates a color signal component for a chrominance signal, a first tone conversion unit that performs a first tone conversion, a second tone conversion unit that performs a second tone conversion, a third generation unit that generates a color signal component used in common, and a third tone conversion unit that performs a third tone conversion on a signal after being processed by the third generation unit. The first and second tone conversion units perform tone conversion using a conversion amount smaller than a conversion amount that matches the target curve, and the third tone conversion unit performs tone conversion using a conversion amount corresponding to a difference from the target curve.

Image processing apparatus for tone conversion, image processing method for tone conversion, and storage medium

Provided is an image processing apparatus capable of applying a pseudo-illumination effect to an image while suppressing a drop in image quality, and a control method for such an image processing apparatus. The image processing apparatus generates a correction signal for correcting sharpness of an image on the basis of illumination characteristics of the virtual light, and applies the correction signal to the image.

Image processing apparatus and control method thereof

An image capture apparatus generating an image, a dynamic range of which is expanded by composing two images having different exposure amounts, includes an imaging unit which continuously outputs images captured to have two different exposure amounts. A system control unit of the image capture apparatus stores in a memory an image of the first frame of two frames to be composed, which are continuously output from the imaging unit, and composes an image of the second frame output from the imaging unit and the image held in the memory so as to expand a dynamic range. The system control unit generates tone compression characteristics based on the image held in the memory and an image obtained by reducing a resolution of the held image, and compresses tones of the composed image using the generated tone compression characteristics.

Image processing apparatus for generating an image having an expanded dynamic range and method thereof, and image capture apparatus

An image capturing apparatus comprises an image sensor that includes a plurality of pixels each having a plurality of photoelectric conversion units and a microlens and that is capable of capturing a subject and periodically outputting image signals individually from the plurality of photoelectric conversion units, a control unit that performs control such that, within the period in which the image sensor outputs an image signal, charge accumulation durations of the plurality of photoelectric conversion units of each pixel of the image sensor are shifted with respect to each other, and a synthesizing unit that sums up, for each pixel, the image signals individually output from the plurality of photoelectric conversion units.

Image capturing apparatus and method for controlling the image capturing apparatus

An image processing apparatus and method for detecting and correcting a defective pixel in an image output from an image sensor including a plurality of pixels, comprising detection of an edge direction based on the image data, detection of a defective pixel included in the image sensor based on the detected edge direction, and correction of the selected defective pixel.

Method and apparatus for correcting a defective pixel

An image processing system has an input unit for inputting an image signal obtained with offset sampling per pixel, a correlation detecting unit for, based on the input image signal, producing a coefficient depending on an arbitrary direction in which correlation between a plurality of pixels near a target pixel to be interpolated is high, and an interpolation circuit for producing an interpolation image signal in accordance with the coefficient produced by the correlation detecting unit, and interpolating the image signal input from the input unit by using the interpolation image signal.

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Tokyo, Japan

Kaori Tajima