Abstract: An apparatus and method for efficiently filtering or otherwise processing digital color image data. The invention may be implemented in hardware, firmware or software. In one embodiment, the green color signal is filtered while the blue and red color signal are not filtered. This results in less filtering circuitry and processing time, while retaining the sharpness of the unfiltered signals. Since the human eye is more sensitive to the color green, filtering this color produces the greatest amount of noise reduction per color. Alternative color and filtering arrangements are also disclosed as is file conversion logic.

Abstract: An apparatus, method and system for transmitting a video signal and picture correction information therefor via a satelite or like transmission system. Mechanisms for, receiving a transmitted video signal and correction information and for processing a received video signal based on the correction information before display are also disclosed.

Abstract: An apparatus and method for improving the clarity of a picture produced from a video signal. A differentiation circuit is provided that produces a responsive correction signal. Mechanisms for adjusting the shape (width, amplitude, etc.) of the correction signal are disclosed. Disabling the correction signal during blanking intervals and synchronization is also disclosed, among other features.

Abstract: An apparatus, method and system for improving or otherwise affecting the picture produced from a video signal. The apparatus preferably includes a video signal receiver, a circuit that decodes picture parameter correction information from a received video signal, and a circuit that processes a received video signal based on decoded picture parameter correction information. The correction information is preferably located in the vertical blanking interval of the received video signal. The method includes encoding picture parameter correction information into a vertical blanking interval of a video signal.