Abstract: Technology for carrying out a luminance range expansion process is provided. In the technology, the luminance range expansion process is carried out in a manner appropriate to the luminance histogram of image data. Using the white peak value WP which represents the maximum value of luminance and the APL which represents the mean value thereof in the luminance histogram of image data, an expansion coefficient for use in the luminance range expansion process is derived by referring to an expansion coefficient lookup table 210. On the basis of the expansion coefficient, the luminance range expansion process is performed on the image data.

Abstract: Technology for carrying out a luminance range expansion process is provided. In the technology, the luminance range expansion process is carried out in a manner appropriate to the luminance histogram of image data. Using the white peak value WP which represents the maximum value of luminance and the APL which represents the mean value thereof in the luminance histogram of image data, an expansion coefficient for use in the luminance range expansion process is derived by referring to an expansion coefficient lookup table 210. On the basis of the expansion coefficient, the luminance range expansion process is performed on the image data.

Abstract: To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module 250 detects a scene change, it changes an expansion coefficient output mode from a normal mode to a scene change mode. An expansion coefficient derivation module 200 outputs an ideal expansion coefficient Gid(n) if the scene change is detected, and outputs a corrected expansion coefficient G(n) if the scene change is not detected.

Abstract: To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module 250 detects a scene change, it changes an expansion coefficient output mode from a normal mode to a scene change mode. An expansion coefficient derivation module 200 outputs an ideal expansion coefficient Gid(n) if the scene change is detected, and outputs a corrected expansion coefficient G(n) if the scene change is not detected.

Abstract: A display system includes: an image data output device which outputs image data; an image display device which displays an image corresponding to the image data; and a control device which controls the image data output device; wherein one of the control device and the image data output device has a compression rate setting unit which determines whether the image corresponding to the image data is a natural image or not and sets a compression rate for the image in accordance with a type of the image; and the image data output device has an image data output unit which outputs a compressed image data acquired by compressing the image data at the compression rate set by the compression rate setting unit.

Abstract: Aspects of the invention provide a projector capable of projecting desired image information by enabling the user to select easily and promptly an image input interface terminal into which the desired image information is inputted, among image input interface terminals. The projector can include image input I/Fs into which image signals from image input devices are inputted, a touch panel having a liquid crystal display to display image information inputted from the image input I/Fs, a thumbnail generating portion to generate thumbnail images to be displayed on the liquid crystal display, and a changeover switch to selectively switch the image input I/Fs by operations on the touch panel. Image information inputted from the selected image I/F can be projected. This enables the user to select desired image information promptly for the desired image information to be projected.

Abstract: Aspects of the invention provide a projector capable of projecting desired image information by enabling the user to select easily and promptly an image input interface terminal into which the desired image information is inputted, among image input interface terminals. The projector can include image input I/Fs into which image signals from image input devices are inputted, a touch panel having a liquid crystal display to display image information inputted from the image input I/Fs, a thumbnail generating portion to generate thumbnail images to be displayed on the liquid crystal display, and a changeover switch to selectively switch the image input I/Fs by operations on the touch panel. Image information inputted from the selected image I/F can be projected. This enables the user to select desired image information promptly for the desired image information to be projected.

Abstract: A display device includes: a brightness histogram information producing unit that produces brightness histogram information on the basis of an image signal; an APL calculating unit that calculates an APL on the basis of the brightness histogram information; a highest class determining unit that determines a highest class, which is a class with a highest brightness, on the basis of the brightness histogram information; an APL difference value calculating unit that calculates an APL difference value which is a difference value between an APL of a previous frame and an APL of a current frame; and a white peak value determining unit that determines a white peak value of a current frame by adding a predetermined value to a white peak value of a previous frame when a highest class difference absolute value, which is an absolute value of a difference value between a highest class of the previous frame and a highest class of the current frame, is less than a threshold value and that determines a white peak value of t

Abstract: An image transmission device which transmits image data of a display image to be displayed by a display device includes: a selecting unit which selects an object constituting the display image; a data generating unit which generates transmission data to serve as the image data of the display image on the basis of image data of the selected object; and a data transmitting unit which transmits the generated transmission data to the display device.

Abstract: An image processing system is disclosed.

Abstract: A video image display device is provided. The device includes an expansion factor deriving unit deriving and outputting an expansion factor for each frame of the video image data, for use in a luminance range expansion process for expanding a luminance range of the video image data on the basis of an image characterizing quantity related to the luminance of the video image data corresponding to the frame; a luminance range expansion processing unit performing the luminance range expansion process to the video image data on the basis of the expansion factor output from the expansion factor deriving unit; and a scene-change detecting unit detecting a change in a screen state of a present frame into a black screen state on the basis of the video image data and detecting a scene-change indicating that the scene of the video image has changed.

Abstract: To provide a technology for performing brightness range expansion processing suitable for a scene change when a scene change occurs. If an expansion coefficient output mode determination module 250 detects a scene change, it changes an expansion coefficient output mode from a normal mode to a scene change mode. An expansion coefficient derivation module 200 outputs an ideal expansion coefficient Gid(n) if the scene change is detected, and outputs a corrected expansion coefficient G(n) if the scene change is not detected.

Abstract: Technology for carrying out a luminance range expansion process is provided. In the technology, the luminance range expansion process is carried out in a manner appropriate to the luminance histogram of image data. Using the white peak value WP which represents the maximum value of luminance and the APL which represents the mean value thereof in the luminance histogram of image data, an expansion coefficient for use in the luminance range expansion process is derived by referring to an expansion coefficient lookup table 210. On the basis of the expansion coefficient, the luminance range expansion process is performed on the image data.

Abstract: Aspects of the invention provide a projector capable of projecting desired image information by enabling the user to select easily and promptly an image input interface terminal into which the desired image information is inputted, among image input interface terminals. The projector can include image input I/Fs into which image signals from image input devices are inputted, a touch panel having a liquid crystal display to display image information inputted from the image input I/Fs, a thumbnail generating portion to generate thumbnail images to be displayed on the liquid crystal display, and a changeover switch to selectively switch the image input I/Fs by operations on the touch panel. Image information inputted from the selected image I/F can be projected. This enables the user to select desired image information promptly for the desired image information to be projected.