Canon Kabushiki Kaisha

Muneki Ando

Naoto Abe

Makiko Mori

Tatsuro Yamazaki

Osamu Sagano

Takeshi Ikeda

Eisaku Tatsumi

Hiroshi Saito

Kousei Sugimoto

Yoshiki Ishii

Ryosuke Takahashi

Kenji Shino

Katsumasa Tanaka

Toshiki Nakatani

Takashi Ohki

Kinshiro Fujinaka

An information-processing apparatus includes: a first acquisition unit configured to acquire gradation characteristic information which relates to a gradation characteristic; a second acquisition unit configured to acquire axial characteristic information which relates to an axial characteristic including a distribution, on an axis, of graduations corresponding to brightness-related values related to brightness of input image data; and a generation unit configured to generate, based on the input image data, the gradation characteristic information, and the axial characteristic information, distribution information indicating a distribution of the brightness-related value of the input image data using the axis according to the axial characteristic information.

Information-processing apparatus and information-processing method for generating waveform information of input image data

A display apparatus includes: an acquiring unit configured to acquire characteristic information on a correspondence relationship between a gradation value and image brightness of input image data; a converting unit configured to generate display image data by converting gradation values of the input image data based on the characteristic information and a predetermined correspondence relationship between a gradation value of the display image data and display brightness; and a displaying unit configured to display an image based on the display image data, wherein the converting unit converts the gradation values so that a linear characteristic is implemented in a first range, and a non-linear characteristic is implemented in a second range.

Display apparatus and control method thereof

Information-processing apparatus and information-processing method for generating distribution of brightness-related value of image data

An image display apparatus according to the present invention includes: a display panel configured to display an image; a light emitting unit configured to emit light onto the display panel; an acquisition unit configured to acquire an expansion parameter to expand a reproducible color gamut, which is a range of colors that the image display apparatus can reproduce, from a reference color gamut to an expanded color gamut; and a conversion unit configured to generate output image data by performing, on input image data, color conversion processing to convert a color outside the expanded color gamut into a color within the expanded color gamut based on the expansion parameter, wherein the light emitting unit increases an emission brightness of the light emitting unit based on the expansion parameter.

Image display apparatus and conversion information generation method

An image processing apparatus includes: an adjusting unit configured to perform a color adjustment process on an input image and generate an output image: a determining unit configured to determine an approximate expression which approximates conversion characteristics of the color adjustment process; and an outputting unit configured to output color adjustment information including information representing the approximate expression determined by the determining unit, wherein when the adjusting unit performs the color adjustment process on a partial region of the input image, the outputting unit outputs, as the color adjustment information, information including the information representing the approximate expression determined by the determining unit and region information representing the partial region.

Image processing apparatus and control method thereof

An image display device includes: a light transmitting unit having transmission wavelength characteristics corresponding to each of a plurality of colors; an illuminating unit configured to emit light corresponding to each of the plurality of colors, the illuminating unit being configured to emit, with respect to at least one predetermined color, light including first light and second light whose emission peak wavelengths are both within a range of the transmission wavelength characteristics corresponding to the predetermined color and whose emission peak wavelengths differ from one another; and a control unit configured to control an intensity of each of the light of the plurality of emission spectra corresponding to the predetermined color in accordance with a color distribution of the image.

Image display device and control method thereof

An image display device includes: a color gamut determining unit configured to determine a color gamut of pixels constituting an image; an image separating unit configured to separate the image into a low chroma image component and a high chroma image component based on a color gamut determination result; and a display unit configured to divide one frame period into subframe periods and temporally separate the low chroma image component and the high chroma image component in each subframe period to form an image. A backlight driving unit causes a broadband light source to emit light when the low chroma image component is being displayed and causes a narrowband light source to emit light when the high chroma image component is being displayed.

Image display device

An apparatus detects a communication state of a wireless communication, detects posture of the apparatus, and controls communication by a wireless communication unit according to the detected posture if it is detected that field intensity of the wireless communication is equal to or less than a predetermined value.

Wireless communication apparatus, its control method, and recording medium

A detection unit which includes an image display panel, brightness averaging unit, scene changeover detection unit, and brightness suppression unit in order to provide an image display apparatus having an ABL that does not give the observer any visual sense of incompatibility without increasing the circuit scale determines the presence/absence of a scene changeover on the basis of the frame differential or second order differential of the average brightness. If a scene changeover takes place, the display brightness is changed quickly, and if no scene changeover occurs, changed slowly.

Control apparatus and method for image display

An image display apparatus includes a plurality of display devices, a plurality of scan interconnections and a plurality of modulation interconnections, a scanning circuit for applying a scanning signal to the scan interconnections, and a modulation circuit for applying a modulation signal to the modulation interconnections. The scanning circuit applies the scanning signals to a group of scan interconnections selected from the plurality of scan interconnections in one select period, and applies the scanning signals, in a subsequent select period, to the plurality of scanning interconnections which were shifted with one scan interconnection portion from the group of scanning interconnections to which the scanning signals were applied in a previous select period. The scanning signals which have the same polarity to the modulation signal in successive two select periods are applied to the scanning interconnection to which the scanning signals should be applied repeatedly, and the output from the scanning circuit has a portion in which signal level is controlled to a non-selection electric potential level between the scanning signals which are applied repeatedly to the scanning interconnection. The scanning circuit is configured to apply scanning signals with different selection electric potentials to a plurality of scan interconnections which are selected in one select period.

Image display apparatus

This invention discloses an arrangement allowing connection of various kinds of image displays to one supply source in an image display control system having a supply source for transmitting a signal including at least a video signal, and an image display for receiving the signal and displaying a corresponding image. The supply source acquires characteristic data of the image display when it is powered on, determines a signal communication specification with the image display based on the acquired characteristic data, and communicates a signal including the video signal with the determined communication specification. The image display transmits characteristic data for specifying the characteristics of the image display to the supply source, and communicates the signal including the video signal in accordance with the determined communication specification. This invention also discloses an arrangement permitting changing the specifications and version of the control program of the image display.

Image display control system and image display system control method with determination of whether or not download of program can be executed

A control circuit of an image display apparatus controls an output of video signals so that a non-display period TC set between an end of display of images corresponding to a first input video signal for one vertical scan and a start of display of an image corresponding to a second input video signal for the next one vertical scan can satisfy a relationship:&#x3e;()/

Image forming apparatus and video receiving and display apparatus

An image display apparatus includes: a first driving mode that selects only one scanning wiring in one selection period; and a second driving mode that drives the image display apparatus so as to select, in one selection period, a plurality of scanning wiring at the same time and to select, in the following selection period, a plurality of scanning wiring shifted by one scanning wiring from the plurality of scanning wiring selected in the preceding selection period, and

Method for driving image display apparatus

In order to obtain a satisfactory image by making a peak luminance of an image to be displayed large and suppressing an occurrence of unnecessary period, there is provided a display driving method for driving a display with a plurality of scanning wirings and a plurality of modulation wirings, comprising: a step of supplying a scan selection signal to a scanning wiring selected out of the plural scanning wirings for each horizontal scanning period; and a step of supplying a modulation signal modulated in accordance with image data to the plural modulation wirings for each horizontal scanning period, in which the selection period of the scan selection signal varies between at least two horizontal scanning periods in a vertical scanning period.

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Kanagawa, Japan

Muneki Ando