Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Shuichi Ojima

Jun Ikeda

Tsuyoshi Hirashima

Shinya Kiuchi

Ryouta Hata

Tatsumi Watanabe

Ryota Hata

Hisashi Inoue

Shiro Iwasaki

Takashi Katsura

Eiichi Hatae

Tadashi Kayada

Bunpei Toji

Mikio Shimazu

Kousuke Kubota

Akio Miyazaki

An image processing device includes a target correction amount calculating unit operable to calculate a target correction amount based on input image signals, a frame memory operable to store the input image signals, and a scene change amount calculating unit operable to calculate a scene change amount based on an input image signal of a present frame and an input image signal of a previous frame. Moreover, the image processing device includes a correction amount calculating unit operable to calculate a correction amount for the input image signal of the present frame, based on the target correction amount and the scene change amount, and a correcting unit operable to perform image quality correction to the input image signal of the present frame to generate a corrected input image signal, thereby outputting a corrected input image signal as an output image signal.

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

It is an object to easily, and using existing devices, perform shadow enhancement that achieves an increase in the feeling of depth of 2D video. The input image data are first converted into brightness information by a brightness information calculation portion. Then, based on that brightness information, the normal direction and the edge information in the pixel targeted for processing are estimated by a normal direction estimation portion. A corrected gradation derivation portion then performs correction processing such as the addition of shadow component on the input image based on the brightness information and the estimated normal direction and edge information to create a processed image that has a feeling of depth, and then an output portion converts this to a predetermined image format and outputs it. In this way, it is possible to easily increase the feeling of depth of a 2D image through the addition of shadow, for example, in accordance with the characteristics of the input image.

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

A specific color-adjusting stage adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage and the total color-adjusting stage are provided in parallel. A composing unit composes linearly an output of the specific color-adjusting stage and an output of the total color-adjusting stage. When a degree that the total color-adjusting stage adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage adjusts the data of the inputted color decreases, and vice versa.

Apparatus and method for adjusting inputted color concerning total and specific colors

The present invention executes color correction that improves the feeling of depth of a 2D image with ease and by using a preexisting device. Input image data is first converted into brightness information by a brightness information calculation portion. The interest level within the image is then estimated by an interest level estimation portion based on that information. The vanishing point is then estimated by a vanishing point estimation portion. Next, a depth estimation portion estimates the degree of depth based on the distance from the vanishing point to a pixel i and the interest level of the pixel i, and calculates a depth correction gain value. A corrected image, obtained by controlling a depth correction image process based on the depth correction gain value, is converted to a predetermined image format and outputted by an output portion.

Image processing device, image processing method, image processing system, program, storage medium, and integrated circuit

The image processing apparatusacquires the image signal Fand includes a steepening amount calculation unit, a contour shift amount calculation unit, an integration correction amount calculationand an image generation unit, which generate a corrected image signal Fin such a way that there is an intersection between waveforms, and that there are two regions with different areas bordered by the waveforms which overlap at the intersection point, the waveforms expressing changes in each value in image spaces displayed by the image signal and the corrected image signal respectively, when a waveform which expresses changes in the differential values of the image signal relative to the image spaces is symmetrical in a contour region of the image shown by the image signal.

Image process apparatus and method for contour correction

There is provided a display control method capable of reducing unnecessary processing and unnecessary power consumption caused by is. The display control method uses an update judgment unit () for judging whether a display content has been updated, a characteristic amount extraction unit () for obtaining the characteristic amount of the display content, a control unit () for the characteristic amount extraction unit () to reference the obtained characteristic amount and decide a correction parameter, and a display content correction unit () for correcting the display content according to the correction parameter and outputting the corrected display content to a display device (). When the update judgment unit () has judged that the display content is not updated, the control unit () cuts off power supply to the characteristic amount extraction unit ().

Display control method and device thereof

It is an object of the invention to realize an image processor that allows the user to designate the degree of depth feeling with his single operation. An image processor includes an image data input unit, a depth data input unit, a depth degree input unit, a depth feeling correction unit, and an image data output unit. The image processor controls, in accordance with the depth data and depth degree, the gain of the depth feeling correction, so that the user can freely adjust the depth feeling degree. The process of the depth feeling degree archives both of the near view process and the distant view process, and the adjustment is carried out with the one-dimensional parameter.

Image processor, image processing method, storage medium, and integrated circuit that can adjust a degree of depth feeling of a displayed high-quality image

A video signal converter has a target pixel setting unit which sets up a position of a target pixel of an input video signal, a position parameter feeding unit which supplies a position parameter depending on the position of the target pixel set by the target pixel setting unit, and a characteristic amount calculating unit which calculates a characteristic amount of the input video signal. The video signal converter also has a detection-threshold setting unit which sets up a detection threshold based on the characteristic amount calculated by the characteristic amount calculating unit, a compensation parameter setting unit which determines a compensation parameter based on the position parameter supplied by the position parameter feeding unit and the detection threshold set by the detection-threshold setting unit, and a multiplier which converts a signal of the target pixel set by the target pixel setting unit in the input video signal, based on the compensation parameter determined by the compensation parameter setting unit, and outputs the conversion result.

Video signal converter and video display device

It is an object to perform color correction that is simple and utilizes existing devices to achieve an increase in the feeling of depth in 2D images. Input image data are transformed into predetermined color information by a color information calculation portion. A correction amount control portiondetermines a correction gain value for the color information according to depth information that has been input. A color information correction portionperforms color information correction based on the correction amount due to the contrast between the color information of a target pixel and representative color information of the surrounding region, and the correction gain value of the correction amount control portion. An output portionconverts this into a predetermined image format and outputs the result. Thus, by correcting the color information based on the contrast effect in conjunction with the depth information of the foreground and the background, for example, it is possible to easily increase the feeling of depth in a 2D image. Moreover, by controlling the color contrast effect with the depth information when performing the color correction, it becomes possible to more easily give a sense of depth that is perceived by humans.

A display controller includes a video signal-analyzing unit, a video signal-adjusting unit operable to receive a video signal, to adjust the video signal in accordance with adjustment parameter information, and to feed the adjusted video signal into a display device, and a light source-controlling unit operable to feed a light source-controlling signal into a light source in accordance with light source light-emitting amount information. The video signal-analyzing unit allows timing in which the display device displays a picture in accordance with the adjusted video signal from the video signal-adjusting unit to be synchronized with timing in which the light source changes a light-emitting amount in response to the light source-controlling signal from the light source-controlling unit.

Display method, display controller, and display apparatus

Picture quality on a display screen is corrected in accordance with a change either in image information or in the light state. The electronic apparatus includes a display panel, a lighting means for lighting the display panel, a parameter adjusting means for adjusting a parameter participating in picture quality so as to conform the light state while using variations in the light state of the lighting means as a trigger, a signal correcting means for inputting a display signal and correcting the input display signal in accordance with the adjusted parameter, and a driving means for driving the display panel on the basis of the corrected display signal. The light state is controlled according to the content of a file containing the information to be displayed.

Electronic apparatus and recording medium therefor

A display control device is provided which includes characteristic value-calculating unit for calculating a characteristic value based on an input image signal, a conversion characteristic-calculating unit for determining a conversion characteristic from the characteristic value, and a signal-converting unit for converting the input image signals in accordance with the determined conversion characteristic. The conversion characteristic has a low level region segment, which is close to the origin of axes respectively representing the input image signal and an output image signal of the display control device, a high level region segment, which is close to a full scale point, and a middle level region segment, which is positioned between the low level region and high level region, and the slope in the middle level region is set so as to be larger than both of the slopes of the low level region and the high level region.

Display control device and display device

There is provided a correlation between adjustment of luminance of a LCD and adjustment of luminance of a backlight. Luminance average value 'Iave' is determined from display data. Luminance maximum value 'I1max' in a macro area is determined from the display data. Luminance is adjusted with reference to luminance-transformed luminance. In luminance transformation, slope average &#x201c;r1&#x201d; in a range of 0&#x2266;I&#x3c;Iave, slope average &#x201c;r2&#x201d; in a range of Iave&#x2266;I&#x3c;Imax, and slope average &#x201c;r3&#x201d; in a range of I&#x2267;Imax establish a relationship of r&#x2267;r&#x3e;rin an area defined by a horizontal axis showing luminance &#x201c;I&#x201d; and a vertical axis showing luminance-transformed luminance &#x201c;I#&#x201d;.

Image display method and apparatus

A pseudo-tone processing means color-reduces each RGB component of incoming display data using pseudo-tone processing. A frame memory stores the color-reduced display data before feeding it to a display through a drive means. Color reduction is performed so that the tone number of each RGB component after color reduction is G component&#x3e;R component&#x3e;B component. Color reduction is unequally performed in a manner which reflects contributions of each RGB component to brightness.

Growing community of inventors

Fukuoka, Japan

Shuichi Ojima