Abstract: [Problem] Provided is an image processing apparatus and program that are able to suppress ringing caused in image data having increased image quality while considering the sharpness of the image data. [Solving Means] An image processing apparatus includes a ringing incidence estimation unit configured to estimate an incidence of ringing representing a probability that ringing will occur, on the basis of input image data, a sharpness estimation unit configured to estimate a sharpness emphasis level representing intensity of sharpness of an input image represented by the input image data, on the basis of the input image data, and an adjuster configured to perform an adjustment process to suppress a level of image conversion on each pixel in converted image data obtained by performing the image conversion on the input image data, on the basis of the incidence of ringing and/or the sharpness emphasis level.

Abstract: A technique to remove fog from an image more appropriately has been called for. An image processing system is provided, including: a luminance evaluation value deriving unit that derives a luminance evaluation value of an at least partial region of an image; a saturation evaluation value deriving unit that derives a saturation evaluation value of the at least partial region of the image; a contrast evaluation value deriving unit that derives a contrast evaluation value of the at least partial region of the image; and a haze depth estimating unit that derives a haze depth estimate value of the image based on the luminance evaluation value, the saturation evaluation value, and the contrast evaluation value.

Abstract: Improving the visibility of the dark portion and to prevent the degradation of image quality caused by excessive correction. A reflectance calculation unit is storing a parameter RGain for adjusting the amplitude of a reflectance component R. An illumination light correction unit generates a corrected illumination light component L1 from an illumination light component L and a formula L1=(log(LAmp*L+1))/(log(LAmp+1)). An image resynthesis unit obtains a corrected illumination light component L? from L?=LGain*L1+(1?LGain)*L. The image resynthesis unit also calculates a corrected image Iout from the corrected illumination light component L? and the corrected reflectance R?, as well as from a formula Iout=exp(log L?+RGain(log I?log L)). The value of the corrected illumination light component (L?) is determined based on the ratio (LGain) at which the output value of the correction function (L1) and the original illumination light component (L) are combined.

Abstract: An image converting method and image converting device that are able to properly reproduce the appearance of the original image even in an environment having different brightness. The image converting method includes a JND corresponding value width acquisition step of, on the basis of input image data, acquiring a JND corresponding value width corresponding to a reflectance component of the input image data, a luminance width acquisition step of acquiring a luminance width corresponding to the JND corresponding value width or a value obtained by converting the JND corresponding value width in accordance with a predetermined rule using, as a reference, a second reference luminance different from a first reference luminance.

Abstract: Provided is a liquid crystal display device that can further reduce flicker. The liquid crystal display device includes a control unit that controls the luminance of a backlight using PWM dimming. The backlight includes n (n?4) number of backlight blocks that are turned on at different timings, and the n number of backlight blocks are turned on in an order different from the order in which the backlight blocks are physically arranged.

Abstract: To allow fog removal even in a densely foggy image. A fog density calculating unit 11 calculates the fog density of an input image given, by using a separated illumination light component. A reflectance component fog removing unit 13 performs fog removal on a reflectance component calculated by a reflectance calculating unit. An illumination light component fog removing unit 14 performs fog removal on the separated illumination light component. Here, the degree of fog removal by the reflectance component fog removing unit 13 is higher than the degree of fog removal by the illumination light component fog removing unit 14. Thereby, the degree of fog removal of the reflectance component can be raised without significantly raising the level of fog removal of the illumination light component.

Abstract: A technique to remove fog from an image more appropriately has been called for. An image processing system is provided, including: a haze depth estimating unit that derives a haze depth estimate value of one frame among a plurality of frames included in a moving image; a parameter adjusting unit that adjusts a parameter to be used in a haze removal process of the one frame based on a haze depth estimate value of the one frame, and a relationship between the one frame and a past frame of the one frame; and a haze removing unit that executes a haze removal process on the one frame based on the parameter adjusted by the parameter adjusting unit.

Abstract: Provided is a picture conversion method capable of, when displaying a picture obtained from identical video data on a display device at different display luminances, converting the picture so that appearances of the picture visually come close to each other. The method includes a step of converting the picture by setting gradation characteristics when displaying the picture at a second luminance so that an inter-close gradation JND corresponding value difference at the second display luminance comes close to an inter-close gradation JND corresponding value difference at a first display luminance in a target gradation range which is at least part of an entire gradation range.

Abstract: By setting the color temperatures of displays included in a display system to a desired value, the life of the displays and display system is extended. A method for this includes acquiring outputable maximum luminances of the displays at each of multiple color temperatures, comparing the outputable maximum luminances of the displays at the same color temperature and determining the lowest maximum luminance value for each of the color temperatures, a color temperature corresponding to the highest of the lowest maximum luminance values identified for each of the color temperatures, and setting color temperatures of at least two of the displays to the common set color temperature.

Abstract: Provided is a photosensor device that even when the width and thickness of a bezel are reduced, can cause a sensor unit to smoothly exit and enter the bezel. Using drive means, a photosensor device causes a sensor unit to perform multiple rotation operations. Thus, the sensor unit is allowed to approach a display screen of an image display panel for a measurement and to be stored in a bezel after the measurement.

Abstract: A life prediction method and device that can predict the life of a display device considering the differences between temperatures at measurements of the luminance of the display device. A monitor measures the luminance of the display screen using an optical sensor and measures the temperature around the display screen using a temperature sensor. A terminal device stores the measured luminances and temperatures in such a manner that the luminance and temperature are associated with each other. On the basis of the measured luminances and temperatures obtained by repeated measurements, the terminal device predicts the trend of changes in the luminance assuming that the temperatures at the measurements have been approximately constant, and predicts the life of the monitor on the basis of the predicted change trend.

Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.

Abstract: A display apparatus including a drive control section that performs control to repeatedly switch between a drive time period during which a backlight emits light and a rest time period during which the backlight does not emit light, in an alternating manner with a prescribed period. The drive control section controls a ratio between the drive time period and the rest time period, and controls the amount of drive current supplied to the backlight during the drive time period. The drive control section sets the rest time period to be a prescribed time period and controls the amount of the drive current for a range where an adjustment value is less than a prescribed value, and sets the drive current to a prescribed value and makes the rest time period shorter than the prescribed time period for a range where the adjustment value is greater than the prescribed value.

Abstract: A technique to remove fog from an image more appropriately has been called for. An image processing system is provided, including: a high saturation pixel extracting unit that extracts, from one frame among a plurality of frames included in a moving image, a high saturation pixel having a saturation higher than a predetermined threshold; a high saturation pixel rate deriving unit that derives a high saturation pixel rate indicative of a percentage of the high saturation pixels in the one frame; and a scene change judging unit that judges whether or not a scene change is included in the moving image based on different criteria depending on whether or not the high saturation pixel rate in the one frame is higher than a predetermined threshold.

Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.

Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.

Abstract: Provided is a display device and display method that can improve the moving image display performance. A display device includes a display panel and a backlight for the display panel. The display device also includes control means configured to output a control signal for controlling illumination and extinction of the backlight, to the backlight in synchronization with start of update of a frame on the display panel and update means configured to update a frame in each predetermined period in order to change one image displayed on a screen of the display panel. The control means outputs a control signal for controlling the backlight so that the backlight starts to illuminate after the update means starts to update one frame and ends illumination at the time point when the update means starts to update a frame subsequent to the one frame or after the time point.

Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.

Abstract: Provided is an optical sensor mounting structure for use in image display device devices that can accurately measure the amount of light from a backlight by measuring leak LED light, without having to modify an image display panel module itself. In an image display device using an image display panel module in which a wire drawing port for drawing a wire from a backlight is formed in a panel sheet metal, an optical sensor mounting structure includes an optical sensor configured to measure leak light from the backlight and a positioning member (intermediate connector) positioning the optical sensor. The optical sensor is disposed near the wire drawing port and measures the leak LED light from the wire drawing port.

Abstract: An image quality enhancing apparatus which make a learning-type image quality enhancing method utilizing a sparse expression practical are provided. The apparatus calculates, from the feature quantity of an image, coefficients of low-image-quality base vectors expressing a feature quantity with a linear sum and generates the image with the image quality enhanced by calculating a linear sum of high-image-quality base vectors using the calculated coefficient. When calculating the coefficient, the number of base vectors with non-zero coefficients is determined, the determined number of base vectors is selected, and a solution of a coefficient matrix is calculated by assuming the coefficients of the base vectors other than the selected base vectors are zero. The amount of processes necessary for obtaining a sparse solution of a coefficient matrix can be reduced by adjusting the number of base vectors with non-zero coefficients, and a practical image quality enhancing apparatus can be realized.