Abstract: A signal processing device for processing three-dimensional image data, having two-dimensional (2D) image data and 2D depth data, includes an input for receiving the 2D image data and the 2D depth data. Further, a first outlier detector is used for establishing a statistical depth deviation of a depth value from other depth values in a first spatial neighborhood of the 2D depth data. A second outlier detector is used for establishing a statistical image deviation of an image value from other image values in a second spatial neighborhood of the 2D image data. The signal processing device also includes a depth value generator for, in dependence on the statistical depth deviation and the statistical image deviation, providing a replacement depth value when the statistical depth deviation exceeds the statistical image deviation.

Abstract: The invention relates to a signal processing device (100) for processing three-dimensional [3D] image data, the 3D image data comprising two-dimensional [2D] image data (150) and thereto corresponding 2D depth data (170), and the signal processing device comprising an input (120) for receiving the 2D image data and the 2D depth data, a first outlier detector (160) for establishing a statistical depth deviation (178) of a depth value from other depth values in a first spatial neighborhood of the 2D depth data, a second outlier detector (140) for establishing a statistical image deviation (158) of an image value from other image values in a second spatial neighborhood of the 2D image data, the depth value representing a depth of the image value, and a depth value generator (180) for, in dependence on the statistical depth deviation and the statistical image deviation, providing a replacement depth value (190) when the statistical depth deviation exceeds the statistical image deviation, the replacement depth val

Abstract: A method of processing image data comprises receiving input signals for specifying red, green and blue colors of the pixels of a display, performing a per-pixel low pass filtering of the input signals, the low pass filtering function being dependent on the chrominance variation between adjacent pixels, and providing the filtered output signals for use in driving the pixels of a display. This method essentially measures the chrominance variation of the incoming signal, in the form of the color change frequency, and depending on this variation, adaptively low-pass filters the incoming signal. This can be in such a way that the chrominance resolution of the outgoing signal is below the maximum chrominance resolution of the intended display, without errors in the average color of a small group of pixels.

Abstract: A method for retargeting an image being defined by a matrix of pixels and comprising an overlay graphic, comprises:•extracting (11) the overlay graphic from the image;•modifying (13) the image by replacing the pixels at the location of the overlay graphic with pixels neutral to an energy function;•calculating (15) a saliency map of the modified image based on the pixel energy function;•retargeting (17) the modified image based on the saliency map;•adding back (19) the overlay graphic to the retargeted image.

Abstract: A color mapping system comprises a detail detector (1) to generate a control signal (CS) which indicates local detail in an input image signal (IS). The system further comprises a color mapper (2) which maps a first image signal (FIS) into a mapped image signal (MIS) under control of the control signal (CS) for locally changing an intensity and/or a saturation of the first image signal (FIS) as a function of the local detail. The first image signal (FIS) is the input image signal (IS) or a low-pass filtered input image signal (LIS).

Abstract: A method of processing image data comprises receiving input signals for specifying red, green and blue colours of the pixels of a display, performing a per-pixel low pass filtering (40) of the input signals, the low pass filtering function being dependent on the chrominance variation between adjacent pixels, and providing the filtered output signals for use in driving the pixels of a display. This method essentially measures the chrominance variation of the incoming signal, in the form of the colour change frequency, and depending on this variation, adaptively low-pass filters the incoming signal. This can be in such a way that the chrominance resolution of the outgoing signal is below the maximum chrominance resolution of the intended display, without errors in the average colour of a small group of pixels.