Canon Kabushiki Kaisha

Izumi Kanai

Kohei Inamura

Yukio Hiraki

Masaru Tada

Hisanobu Azuma

Takeshi Ikeda

Yasuo Suzuki

Makiko Mori

Tatsuro Yamazaki

Nobuhiro Hoshi

Toshiyuki Kanda

Seiji Osawa

Hidetoshi Suzuki

Hideaki Mitsutake

Masaaki Iwane

Noritake Suzuki

Tetsuji Saito

Takushi Kimura

Yukio Masuda

Kazuhiko Nakazawa

Yoshihisa Furumoto

Toshiki Nakatani

Yuki Shindo

Yuuki Shindo

Yohei Sekiguchi

An image display apparatus includes: a display unit; a plurality of light emitting units; and a light-emission controller configured to individually control light-emission brightness of each of the light emitting units, wherein in a case where brightness of light applied to a region of the display unit on which a black region of an input image is displayed is less than or equal to predetermined brightness, transmittance of the display unit is controlled such that transmittance of the region of the display unit corresponding to the black region becomes higher than that in a case in which the brightness is higher than the predetermined brightness.

Image display apparatus and method for controlling same

A display apparatus including: a display panel; a light emitting unit having a plurality of light sources; an acquiring unit acquiring feature values of an input image for divided regions respectively corresponding to the light sources; and a control unit configured to control, wherein in a case where the input image is a second image not including the predetermined object image, the control unit does not implement control operation of controlling the brightness of the light sources corresponding to the dark divided regions lower than the brightness of the light sources corresponding to the other divided regions.

Display apparatus and method for controlling same

An image-processing device is configured to detect a motion region within an input image; generate an intermediate image from an N-th frame and an (N+1)-th frame; perform processing of reducing a high-frequency component of spatial frequency on the intermediate image; and output an image of which a frame rate is increased by insertion of the intermediate image having undergone the processing between the N-th frame and the (N+1)-th frame. When a target position at which a pixel value of the intermediate image is to be calculated lies within the motion region, a pixel value of the intermediate image at the target position is calculated using a pixel value of the N-th frame and a pixel value of the (N+1)-th frame at a position in the vicinity of the target position and outside the motion region.

Image-processing device and control method thereof

An image processing apparatus according to the present invention comprises: an acquisition unit that acquires a statistical value of pixel values for each divided region; a determination unit that compares for each divided region the statistical value of the divided region acquired by the acquisition unit with a first threshold and determines whether the divided region is as color region or a monochrome region; and a re-determination unit that compares a statistical value of an adjacent divided region with a second threshold, by which a divided region is more likely determined as a color region than by the first threshold, for each adjacent divided region, and re-determines whether the adjacent divided region is a color region or a monochrome region.

Image processing apparatus and control method therefor

An image processing apparatus according to the present invention determines a monochrome area and a color area of an input image. The apparatus comprises an acquisition unit that acquires an image characteristic value of the input image; and a determination unit that determines whether each pixel group in the input image is a monochrome area or a color area based on the image characteristic value acquired by the acquisition unit, wherein the acquisition unit acquires a plurality of image characteristic values corresponding to a plurality of acquisition areas including a determination target pixel group, and the determination unit determines whether the pixel group is a monochrome area or a color area based on the plurality of image characteristic values corresponding to the plurality of acquisition areas including the pixel group.

An image processing apparatus includes a histogram creation unit that creates a histogram from an input image, a detection unit that detects a gradation level of interest from the histogram, a gradation correction parameter generation unit that generates a gradation correction parameter to improve a gradation characteristic in a gradation range around the gradation level of interest, and a correction unit that corrects the gradation of the image using the gradation correction parameter. The detection unit detects, as the gradation level of interest, a gradation level whose frequency is a peak value equal to or more than a predetermined threshold, and which has variation width of frequencies in a predetermined range including this gradation level to be smaller than a predetermined width in the histogram.

Image processing apparatus and control method thereof detecting from a histogram a gradation level whose frequency is a peak value

An image display system having a generation unit to generate a video signal which is composed of a partial image cut out from a still image; and a display unit to display a video signal inputted from said generation unit at a frame rate higher than that of said inputted video signal by creating an interpolated frame based on a motion vector, wherein said generation unit has a movement unit to move a cut-out position of said partial image, and an output unit to output movement information including at least information indicative of the direction of movement of said cut-out position together with said video signal, and wherein said display unit has a setting unit to set a motion vector used for the creation of said interpolated frame by using said movement information.

Apparatus, method and system for frame rate conversion of partial image

A data processing method of executing nonlinear conversion for pixel data, comprising: a first step of obtaining an amount of statistics corresponding to the number of pixel data having a gradation value in a predetermined range from a plurality of pixel data for displaying a predetermined image; a second step of obtaining a parameter corresponding to the distribution condition of the gradation values of the plurality of pixel data; an adjusting step of adjusting the amount of statistics based on the parameter; and a determining step of determining a conversion characteristic of the nonlinear conversion based on the adjusted amount of statistics.

Data processing method and data processing device for histogram-based nonlinear conversion

A signal processing method includes a first step of calculating a value indicating a value obtained by multiplying a ratio of the number of times of inputting the input signal having any one of values from p to m, where m is a maximum value of values of input signal which are subject to said signal processing and p is a value smaller than m and not a minimum value of the input signal, within a predetermined period to the number of times of inputting the input signal within the predetermined period, by the variable range of the converted value; and a second step of subtracting the calculated value from a maximum value within the variable range of the converted value or a value near the maximum value, wherein the input signal is converted according to the conversion characteristic specified based on a value obtained by subtraction.

Signal processing method and signal processing circuit

An image display apparatus of this invention includes a neighborhood data integration sectionwhich integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adderadds the integrated image data R, G, and Bon the respective colors, a coefficient operation sectionwhich multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adderwhich adds outputs R, G, and Bobtained by inverting a sign of multiplication results to image data R, G, and Bcorresponding to the electron emitting device to be driven, respectively, and a comparatorwhich compares an addition result with zero in magnitude, and which outputs a driving signal Rfor the respective colors.

Image display apparatus

The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Image display apparatus for forming an image with a plurality of luminescent points

Color saturation in chroma correction is reduced. Hence, a two-dimensional histogram is generated in association with the luminance and chroma levels of an image for one frame. An ease of saturation of the image is calculated from the two-dimensional histogram. A chroma gain is set according to the ease of saturation. Color-difference signals undergo chroma correction according to the chroma gain k.

Image processing apparatus and method thereof

A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.

Signal processing method, image display apparatus, and television apparatus

The present invention discloses a control apparatus. This control apparatus has a modulation circuit, and a control circuit for setting up an amplitude setting signal and/or a pulse width setting signal to be used in the modulation circuit, on the basis of characteristic data representative of characteristics of an input image signal, the amplitude setting signal and/or the pulse width setting signal being used for setting up an amplitude and/or a time width of a pulse signal to be output from the modulation circuit in accordance with a gradient gradation value of the image signal, wherein the modulation circuit is a circuit which uses the time width setting signal and/or the amplitude setting signal as a reference signal for setting up the time width and amplitude of the pulse signal in correspondence with the gradient.

Controller and image display device

In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

Growing community of inventors

Machida, Japan

Izumi Kanai