Abstract: An image processing unit receives at least a clock signal, a data enable signal, and an image signal, and outputs at least the clock signal, the data enable signal, and a processed image signal. The image processing unit includes an interface, an estimated vertical synchronizing signal generator, and an image signal processor. The interface receives the clock signal and the data enable signal, and outputs the clock signal and the data enable signal. The estimated vertical synchronizing signal generator generates an estimated vertical synchronizing signal based on the clock signal and the data enable signal. The image signal processor receives the image signal, generates the processed image signal by performing, on the image signal, predetermined processing that uses the estimated vertical synchronizing signal, and outputs the generated processed image signal.

Abstract: A purpose of the present invention is to implement, by specifying a process target area, an image generation device which generates an image (video) from which an image quality improving effect can be recognized and a display device which displays the image. An image generation device (1000) includes a screen duplication unit (1), a mask area determination unit (2), a composition unit (3), and an image quality adjustment unit (4). The screen duplication unit (1) extracts and outputs at least a part of an image area of an input image as a process target image. The mask area determination unit (2) determines a mask area of the process target image and generates a mask image specifying the mask area. The image quality adjustment unit (4) performs predetermined image process to the mask area, which is determined by the mask area determination unit (2) in the process target image and outputs the image, to which the image process is performed, as an image after image quality adjustment.

Abstract: A resolution estimating device is achieved which is capable of adequately estimating the resolution of the original image of any received image signal. A resolution estimating device (1000) includes a proximity-degree acquiring unit (1), an accumulation unit (2), a frequency transform unit (3), and a spectrum analyzing unit (4). The proximity-degree acquiring unit (1) acquires the proximity degree value of each target pixel. The accumulation unit (2) accumulates the proximity degrees of the target pixels, for example, in the vertical direction on the image, and obtains a one-dimensional data sequence of the accumulated proximity degree values. The frequency transform unit (3) performs a frequency transform on the one-dimensional data sequence of the accumulated proximity degree values obtained by the accumulation unit (2), and obtains a one-dimensional frequency-component data sequence which is a one-dimensional data sequence for frequency regions.

Abstract: A video processing device detects, as a characteristic region, a region having a prescribed characteristic in each frame of a video and performs specific image processing on either the characteristic region in the frame or a region other than the characteristic region in the frame with a specified processing strength. The processing strength is specified so as to be altered stepwise in at least two steps that involve an intermediate value between a minimum value and a maximum value when there is a change in whether or not a characteristic region has been detected.

Abstract: Provided is an image processing device capable of reproducing an original thin linear image region from a linear image region, which has become thick due to upscaling processing for a low-resolution image. In an image processing device (100), an amplitude estimation unit (1) calculates a magnification a in a local region so that an input image signal becomes similar to a low-resolution pattern PtnL. A similarity calculation unit (2) outputs a similarity s, which has a great value, at a pixel position which is similar to the low-resolution pattern PtnL. An FIR filter unit (4) sets an FIR filter coefficient by a difference pattern PtnDiff, receives a product of the magnification a and the similarity s, and performs FIR filter processing, and thereby acquires a high frequency component ?D. Then, when the high frequency component ?D is added to an input image Din by an adder (5), an output image Dout having excellent definition is acquired.

Abstract: An image processing device (1000) includes a luminance variation detection unit (1), an angular variation detection unit (2), an image region detection unit (3), and an image processing unit (4). The luminance variation detection unit (1) detects a degree of variation of pixel value in a pixel reference region including a pixel of interest and pixels around the pixel of interest. The angular variation detection unit (2) acquires a contour direction where the pixel value is constant in the pixel reference region for each pixel and detects a degree of variation of the acquired contour direction. The image region detection unit (3) acquires an image region detection signal representing characteristics of the image region including the pixel of interest based on the degree of variation of the pixel value and the degree of variation of the contour direction. The image processing unit (4) performs a predetermined image process on the pixel of interest based on the image region detection signal.

Abstract: An image processing device according to one embodiment of the invention includes a contour direction estimating unit, a direction evaluating unit, a reference region weighting processing unit, and a composition operation unit.

Abstract: Provided is an image processing device capable of performing appropriate noise removal or reduction on input images of various resolution. The image processing device includes a contour direction estimating unit (21) that estimates a contour direction in which a signal value is a constant value for each pixel, a low pass filter unit (20a) that smoothes the signal value of the pixel based on the signal value of each reference pixel serving as a pixel of a reference region according to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating unit for each pixel, and a parameter deciding unit (20b) that decides intensity of smoothing by the low pass filter unit according to an enlargement factor obtained based on a ratio of resolution of an input image signal and resolution of an output image signal.

Abstract: A contour direction estimating unit estimates a contour direction in which signal values of pixels are constant values for each pixel, a low pass filter unit smooths a signal value of the pixel based on a signal value of each reference pixel that is a pixel of a reference region corresponding to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating unit for each pixel, and a high frequency expanding unit generates a high frequency component of the signal value of the pixel and expands a frequency band for the signal value of the pixel.

Abstract: Provided is an image processing device capable of reproducing an original thin linear image region from a linear image region, which has become thick due to upscaling processing for a low-resolution image. In an image processing device (100), an amplitude estimation unit (1) calculates a magnification a in a local region so that an input image signal becomes similar to a low-resolution pattern PtnL. A similarity calculation unit (2) outputs a similarity s, which has a great value, at a pixel position which is similar to the low-resolution pattern PtnL. An FIR filter unit (4) sets an FIR filter coefficient by a difference pattern PtnDiff, receives a product of the magnification a and the similarity s, and performs FIR filter processing, and thereby acquires a high frequency component ?D. Then, when the high frequency component ?D is added to an input image Din by an adder (5), an output image Dout having excellent definition is acquired.

Abstract: A resolution estimating device is achieved which is capable of adequately estimating the resolution of the original image of any received image signal. A resolution estimating device (1000) includes a proximity-degree acquiring unit (1), an accumulation unit (2), a frequency transform unit (3), and a spectrum analyzing unit (4). The proximity-degree acquiring unit (1) acquires the proximity degree value of each target pixel. The accumulation unit (2) accumulates the proximity degrees of the target pixels, for example, in the vertical direction on the image, and obtains a one-dimensional data sequence of the accumulated proximity degree values. The frequency transform unit (3) performs a frequency transform on the one-dimensional data sequence of the accumulated proximity degree values obtained by the accumulation unit (2), and obtains a one-dimensional frequency-component data sequence which is a one-dimensional data sequence for frequency regions.

Abstract: A purpose of the present invention is to implement, by specifying a process target area, an image generation device which generates an image (video) from which an image quality improving effect can be recognized and a display device which displays the image. An image generation device (1000) includes a screen duplication unit (1), a mask area determination unit (2), a composition unit (3), and an image quality adjustment unit (4). The screen duplication unit (1) extracts and outputs at least a part of an image area of an input image as a process target image. The mask area determination unit (2) determines a mask area of the process target image and generates a mask image specifying the mask area. The image quality adjustment unit (4) performs predetermined image process to the mask area, which is determined by the mask area determination unit (2) in the process target image and outputs the image, to which the image process is performed, as an image after image quality adjustment.

Abstract: An image processing unit receives at least a clock signal, a data enable signal, and an image signal, and outputs at least the clock signal, the data enable signal, and a processed image signal. The image processing unit includes an interface, an estimated vertical synchronizing signal generator, and an image signal processor. The interface receives the clock signal and the data enable signal, and outputs the clock signal and the data enable signal. The estimated vertical synchronizing signal generator generates an estimated vertical synchronizing signal based on the clock signal and the data enable signal. The image signal processor receives the image signal, generates the processed image signal by performing, on the image signal, predetermined processing that uses the estimated vertical synchronizing signal, and outputs the generated processed image signal.

Abstract: An image processing device (1000) includes a luminance variation detection unit (1), an angular variation detection unit (2), an image region detection unit (3), and an image processing unit (4). The luminance variation detection unit (1) detects a degree of variation of pixel value in a pixel reference region including a pixel of interest and pixels around the pixel of interest. The angular variation detection unit (2) acquires a contour direction where the pixel value is constant in the pixel reference region for each pixel and detects a degree of variation of the acquired contour direction. The image region detection unit (3) acquires an image region detection signal representing characteristics of the image region including the pixel of interest based on the degree of variation of the pixel value and the degree of variation of the contour direction. The image processing unit (4) performs a predetermined image process on the pixel of interest based on the image region detection signal.

Abstract: Provided is an image processing device capable of performing appropriate noise removal or reduction on input images of various resolution. The image processing device includes a contour direction estimating unit (21) that estimates a contour direction in which a signal value is a constant value for each pixel, a low pass filter unit (20a) that smoothes the signal value of the pixel based on the signal value of each reference pixel serving as a pixel of a reference region according to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating unit for each pixel, and a parameter deciding unit (20b) that decides intensity of smoothing by the low pass filter unit according to an enlargement factor obtained based on a ratio of resolution of an input image signal and resolution of an output image signal.

Abstract: An image processing device according to one embodiment of the invention includes a contour direction estimating unit, a direction evaluating unit, a reference region weighting processing unit, and a composition operation unit.

Abstract: A contour direction estimating unit estimates a contour direction in which signal values of pixels are constant values for each pixel, a low pass filter unit smooths a signal value of the pixel based on a signal value of each reference pixel that is a pixel of a reference region corresponding to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating unit for each pixel, and a high frequency expanding unit generates a high frequency component of the signal value of the pixel and expands a frequency band for the signal value of the pixel.

Abstract: A noise reduction apparatus includes a scene change frame detection unit that detects at least one of frames immediately before and immediately after a scene change among frames included in a video signal and a time-difference signal having a time difference from the video signal based on the video signal and the time-difference signal and a noise reduction processing unit that weakens noise reduction of inter-frame noise superimposed between frames for at least one image signal of the at least one frame detected by the scene change frame detection unit.

Abstract: A scene change detection device includes an inter-frame difference calculation unit configured to calculate, based on an image signal, an inter-frame difference value corresponding to an inter-frame pixel value difference, and a determination unit configured to determine whether or not a target frame is the first frame in a video scene that has changed, by referring to a first value and a comparative value, the first value being an inter-frame difference value between the target frame and a frame other than the target frame, the comparative value being derived from a second value that is an inter-frame difference value between frames other than the target frame.

Abstract: An image processing device includes a signal supplementing unit that generates a harmonic signal of a signal of a predetermined frequency band in an image signal, and supplements the image signal with the generated harmonic signal.