Clipping circuit and image processing device employing such...

Details Clipping circuit and image processing device employing such... Clipping circuit and image processing device employing such...

2005-03-29

2005-03-29

Lee, Michael H. (Department: 2614)

Television

Image signal processing circuitry specific to television

Transition or edge sharpeners

C348S606000, C382S266000

Reexamination Certificate

active

06873372

ABSTRACT:
In an image processing device, an edge detecting circuit1produces edge signals that represent edge components present in image signals, and an adder circuit2superimposes the edge signals on the image signals to produce edge-enhanced image signals. The image signals before edge enhancement are fed to a range setting circuit3so that, based on the image signals preceding and following a target image signal that is about to be processed by a clipper4, a range in which the data value of the target image signal is allowed to vary is set. Based on the range of data values thus set by the range setting circuit3, the clipper4clips the data values of the edge-enhanced image data.

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