Cost function to measure objective quality for sharpness...

Details Cost function to measure objective quality for sharpness... Cost function to measure objective quality for sharpness...

2005-08-23

2005-08-23

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

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Reexamination Certificate

active

06933953

ABSTRACT:
A system and method for selecting an enhancement vector for a plurality of enhancement functions using a cost function. A sharpness enhancement system is described that receives an input picture and outputs an enhanced picture, the sharpness enhancement system comprising: a plurality of enhancement functions that enhance the input picture; and a picture quality analyzer that selects an enhancement vector for the plurality of enhancement functions, wherein the enhancement vector is selected from a set of vectors based on a cost function that comprises: (1) a gradient analysis, and (2) a dynamic range analysis.

REFERENCES:
patent: 5365597 (1994-11-01), Holeva
patent: 2002/0122603 (2002-09-01), Boroczky et al.
patent: 2003/0123747 (2003-07-01), Yang et al.

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