Sharp Kabushiki Kaisha Corporation

Other

Synthesis Corporation

Xiaomang Zhang

Noboru Kubo

Masafumi Ueno

Yasuhiro Ohki

Hiroyuki Okuhata

Akimasa Niwa

Toshihiro Yanagi

Naoko Kondoh

Yasuji Obuchi

Naoyuki Fukuda

Norikazu Hohshi

Akiko Yoshida

Akira Yamanishi

A liquid crystal module () of the present invention includes: a backlight () (a lighting device) that emits a light; a liquid crystal panel () that is struck by a light emitted from the lighting device; and a power transmitting coil () that receives a voltage from an AC power supply, generates a magnetic field, and transfers an electrical power to a device to be charged.

Liquid crystal module and electronic device

A motion vector detecting unitdetects a motion vector Vof an input image X(n), and an interpolating vector generating unitgenerates an interpolating vector Vin accordance with the motion vector V. In a two-dimensional display mode, the input image X(n) is output as an original image, and an image generating unitgenerates an interpolated image X(n+0.5) in accordance with the interpolating vector V. In a three-dimensional display mode, the input image X(n) is output as a left-eye image L(n), and the image generating unitgenerates a right-eye image R(n+0.5) in accordance with a sum of the interpolating vector Vand a parallax vector Vinput from the outside. The image generating unit is shared in a frame rate conversion process and a three-dimensional conversion process, and the right-eye image is generated at the same location as the interpolated image in time axis. In this way, image quality is increased when a moving image is displayed with a small amount of circuit.

Image processing device, image processing method, image display apparatus, and image display method

A three-dimensional noise reduction processing unit perform as a recursive noise reduction process to an input image X(n), using a motion vector MV detected by a motion vector detecting unit. A three-dimensional noise reduced image B(n) is output as a corrected original image Y(n). A two-dimensional noise reduction filter processing unit applies a two-dimensional noise reduction filter to the input image X(n). Using the motion vector MV, an interpolated image generating unit generates an interpolated image Y(n+0.5) based on a two-dimensional noise reduced image A(n). Significant degradation of an interpolated image due to false detection of a motion vector is prevented by generating the interpolated image based on the image resulted without performing the recursive noise reduction process.

Image processing device, image processing method, image display device, and image display method

The disclosed image enlargement device is provided with: an image enlargement filter () that enlarges an input image, generating a first enlarged image; a first wavelet transformation unit () that performs a wavelet transformation on the first enlarged image; a second wavelet transformation unit () that performs a wavelet transformation on the first enlarged image; and an accentuation processing unit () that performs an accentuation process using a first edge signal (EDGE_CDF9/7), generated from the output of the first wavelet transformation unit, and a second edge signal (EDGE_Harr), generated from the output of the second wavelet transformation unit. The first wavelet transformation unit and the second wavelet transformation unit perform different wavelet transformations.

Image enlargement device, image enlargement program, memory medium on which an image enlargement program is stored, and display device

Provided is an image processing device. A first color space converting unit converts image data in an RGB colorimetric system, which has a color gamut wider than a color gamut of a liquid crystal panel into image data in an XYZ colorimetric system. A three-dimensional nonlinear color gamut converting unit performs conversion on tristimulus values of the XYZ signal. At this time, the image data is classified into four colors and converted respectively such that the first color is displayed in a color accurate to the inputted data, the second color is displayed such that saturation of the second color is increased, the third color is displayed using a color gamut of a predetermined range out of the color gamut of the liquid crystal panel, and the fourth color is displayed in a color corresponding to a boundary of the color gamut of the liquid crystal panel.

Image processing device converting a color represented by inputted data into a color within a color reproduction range of a predetermined output device and image processing method thereof

Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. An image processing device includes: a color gamut conversion processor configured to convert inputted data into RGB data according to a liquid crystal panel; a weighting factor calculator configured to calculate a weighting factor; a first post-color-gamut-conversion data weighting processor configured to perform weighting processing to the RGB data; an inputted data weighting processor configured to perform weighting processing to the inputted data; and an output adder configured to add data after the weighting processing to generate RGB data to be supplied to the liquid crystal panel. The weighting factor calculator obtains the weighting factor based on a positional relation among a chromaticity coordinate on an xy chromaticity diagram, a color reproduction range for the inputted data, and a boundary line defined so as to include memory colors.

Image processing device and image processing method

Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. In at least one embodiment, an image processing device includes: a first color space converter configured to convert an externally transmitted RGB signal into an XYZ signal; a three-dimensional matching processor configured to perform conversion to tristimulus values of the XYZ signal to generate an XYZ signal; and a second color space converter configured to convert the XYZ signal to an RGB signal for a liquid crystal panel. The three-dimensional matching processor performs the conversion to the tristimulus values such that saturation and brightness of only colors whose chromaticity coordinate is outside a boundary line provided on an xy chromaticity diagram are increased, and maintains the tristimulus values as they are such that colors whose chromaticity coordinate is within the boundary line are displayed in colors accurate to colors represented by the RGB signal.

When each value of luminance signals of three primary colors in the primary video signal is less than the output lower limit value, in short, when the gradation level is negative, the negative gradation level of the present primary color is, in accordance with its magnitude, in other words, in accordance with the absolute value of the negative gradation level, replaced with positive gradation levels of other two primary colors. Therefore, in accordance with A VIDEO SIGNAL CONVERTER of this invention, even when the primary video signal includes a signal value having a negative gradation level, in short, even when one or more of each signal value of RGB is below the output lower limit value, a color according to the combination of those gradation levels (a combination of each level of primary colors (RGB)) can be reproduced (displayed) by a display means.

Video signal converter, video display device, and video signal converting method

The watermark insertion section divides the quantized DCT coefficients into at least two data streams, and modifies values of AC components of the data streams, so as to embed the watermark information in each block of the image information with the DCT coefficients quantized. The modification is performed as follows. The sum of a plurality of data of each data stream (or the sum of a plurality of data of a prescribed portion of each data stream) is divided by 2. Then, a value of an AC component of each data stream is modified such that the value of each remainder (the value of the LSB) has a prescribed relationship with (for example, is equal to) the value of the watermark information. Specifically, the value of the first non-zero AC component, from the trailing end of each data stream, is processed by addition of 1 or subtraction of 1.

Image processing apparatus, image processing system, electronic information apparatus, image processing method, control program, and computer-readable recording medium

An image processing apparatus for processing RGB image data output from an image capturing element including a primary-color filter, includes: a middle-high range luminance component compensation section for compensating for a middle-high range luminance component of a low-frequency luminance signal generated based on the RGB image data such that the low-frequency luminance signal has substantially an ideal frequency luminance characteristic which is lower than or equal to a predetermined frequency.

Image processing apparatus

A pixel defect detector of the present invention is used for a solid-state imaging device comprising a plurality of photoelectric transducers. The pixel defect detector includes: a calculation section for obtaining output characteristics of a subject photoelectric transducer for varied amounts of light incident thereupon so as to determine the presence/absence of a defect in the subject photoelectric transducer based on the output characteristics thereof.

Pixel defect detector for solid-state imaging device

A method is provided for correcting lightness of an image using a multiscale retinex. Lightness of a subject pixel of an original image is corrected using a convolution operation of a surround function and surround pixels with respect to the subject pixel of the original image, and the convolution operation is performed over a plurality of scales. The surround function has a simplified model such that a value of the surround function is changed in a stepwise way along two axes orthogonal to each other.

Method for correcting lightness of image

An image processing method includes the steps of: separating a luminance signal from a color signal of an original image, and multiscale retinex processing only the luminance signal; and producing an image based on the multiscale retinex processed luminance signal and the color signal of the original image.

Image processing method and image processing apparatus

A method for correcting lightness of an image includes the steps of: calculating a first scale and a second scale based on an image scale of an original image from image information of the original image; multiscale retinex processing the original image with respect to the first scale and the second scale; and synthesizing a result of the multiscale retinex processing with the image information of the original image.

Method and device for correcting lightness of image

An image processing apparatus includes a signal processing section for processing an image signal including a first signal and a second signal. The signal processing section processes the first signal and the second signal using different interpolation programs from each other.

Growing community of inventors

Osaka, Japan

Xiaomang Zhang