Abstract: An image processing device includes: a computation unit that calculates signal values of a plurality of second colors by using signal values of a plurality of first colors obtained from an image sensor; a saturation determiner that determines whether or not at least one of the plurality of first colors is saturated by using the signal values of the plurality of first colors; and a corrector that corrects at least one signal value of the plurality of second colors and outputs a corrected signal value, when the saturation determiner determines that the at least one of the plurality of first colors is saturated.

Abstract: An image processing device includes: a face detector which detects a face region including a face of a person from an input image signal; a determination portion which determines, in the input image signal of the face region, an addition amount of a pixel value to be added to the input image signal of the face region based on a size of a difference in a pixel value between adjacent pixels; and a signal corrector which adds the addition amount to the pixel value of the input image signal of the face region.

Abstract: A color signal processing device for generating image data to be displayed on a display device which represents a color by using at least four primary colors, includes an obtainer that obtains a color signal regarding three primary colors for image data composed of a plurality of pixels, a changer that changes a value of the obtained color signal regarding the three primary colors, and a converter that converts the changed color signal regarding the three primary colors into a color signal regarding four primary colors. When a predetermined region contains a color saturated pixel, the changer makes the value of the color signal of at least one color of the three primary colors smaller, for pixels contained in the predetermined region.

Abstract: A display device includes a display portion having red, green, blue and white sub pixels, a converter generating red, green and blue conversion signals using a brightness ratio from a ratio storage, an upper limit value calculator calculating an upper limit value of a display brightness of the white sub pixel using the red, green and blue conversion signals and the brightness ratio, a lower limit value calculator calculating a lower limit value of the display brightness of the white sub pixel using the red, green and blue conversion signals and the brightness ratio, and a white control signal generator generating a white output control signal for controlling the display brightness of the white sub pixel such that the display brightness is not more than the upper limit value and not less than the lower limit value, and outputting the generated white output control signal to the display portion.

Abstract: An image processing device includes: a face detector which detects a face region including a face of a person from an input image signal; a determination portion which determines, in the input image signal of the face region, an addition amount of a pixel value to be added to the input image signal of the face region based on a size of a difference in a pixel value between adjacent pixels; and a signal corrector which adds the addition amount to the pixel value of the input image signal of the face region.

Abstract: A display device includes a display portion having red, green, blue and white sub pixels, a converter generating red, green and blue conversion signals using a brightness ratio from a ratio storage, an upper limit value calculator calculating an upper limit value of a display brightness of the white sub pixel using the red, green and blue conversion signals and the brightness ratio, a lower limit value calculator calculating a lower limit value of the display brightness of the white sub pixel using the red, green and blue conversion signals and the brightness ratio, and a white control signal generator generating a white output control signal for controlling the display brightness of the white sub pixel such that the display brightness is not more than the upper limit value and not less than the lower limit value, and outputting the generated white output control signal to the display portion.

Abstract: 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.

Abstract: 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.

Abstract: On the display screen of a video signal display device, when the emission amount is monotonically lowered toward the screen periphery from a certain point (screen center), if there are a plurality of regions that viewers notice easily (such as faces), then correction by monotically decreasing the emission amount cannot always raise the signal level in the regions that are noticed, and it may not be possible to obtain a sufficient sense of brightness.

Abstract: 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 (33) for judging whether a display content has been updated, a characteristic amount extraction unit (36) for obtaining the characteristic amount of the display content, a control unit (20) for the characteristic amount extraction unit (36) to reference the obtained characteristic amount and decide a correction parameter, and a display content correction unit (35) for correcting the display content according to the correction parameter and outputting the corrected display content to a display device (40). When the update judgment unit (33) has judged that the display content is not updated, the control unit (20) cuts off power supply to the characteristic amount extraction unit (36).

Abstract: 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.

Abstract: 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.

Abstract: 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 (33) for judging whether a display content has been updated, a characteristic amount extraction unit (36) for obtaining the characteristic amount of the display content, a control unit (20) for the characteristic amount extraction unit (36) to reference the obtained characteristic amount and decide a correction parameter, and a display content correction unit (35) for correcting the display content according to the correction parameter and outputting the corrected display content to a display device (40). When the update judgment unit (33) has judged that the display content is not updated, the control unit (20) cuts off power supply to the characteristic amount extraction unit (36).

Abstract: A color adjustment device (100) comprises an image characteristic amount acquiring unit (10), a specific-color-area determination unit (20), and a color compensation unit (30). The image characteristic amount acquiring unit (10) acquires the image characteristic amount of an input image from the average luminance or additional information of the input image. The specific-color-area determination unit (20) determines a specific color area based on the image characteristic amount. With reference to the specific color area, the color compensation unit (30) calculates the degree of similarity of the input color of the input image to the specific color, and performs the color adjustment of the input color of the input image with respect to at least one specific color. The area of the input image which is comparatively wide and possesses a color of the same system as the specific color is not wrongly recognized as the area of the specific color.

Abstract: 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.

Abstract: A video signal converter (100) comprises a target pixel setting unit (4) which sets up a position of a target pixel of an input video signal, a position parameter feeding unit (5) which supplies a position parameter depending on the position of the target pixel set by the target pixel setting unit, a characteristic amount calculating unit (6) which calculates characteristic amount of the input video signal, a detection-threshold setting unit (7) which sets up a detection threshold based on the characteristic amount calculated by the characteristic amount calculating unit, a compensation parameter setting unit (8) 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 (9) 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 se

Abstract: On the display screen of a video signal display device, when the emission amount is monotonically lowered toward the screen periphery from a certain point (screen center), if there are a plurality of regions that viewers notice easily (such as faces), then correction by monotically decreasing the emission amount cannot always raise the signal level in the regions that are noticed, and it may not be possible to obtain a sufficient sense of brightness.

Abstract: 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.

Abstract: 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.

Abstract: 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.