Image signal processing circuit, display apparatus, and image signal processing method

A display apparatus is provided with a reverse gamma conversion circuit, an image signal processing circuit, and a display device. The display device is a PDP in which the light-emitting characteristics are linear. The image signal processing circuit is provided with a smoothing signal generator for...

Full description

Saved in:
Bibliographic Details
Main Author YANO OSAMU
Format Patent
LanguageEnglish
Published 30.11.2006
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
CALCULATING
CINEMATOGRAPHY
COMPUTING
COUNTING
ELECTROGRAPHY
HANDLING RECORD CARRIERS
HOLOGRAPHY
MATERIALS THEREFOR
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
Online AccessGet full text

Cover

More Information
Summary:A display apparatus is provided with a reverse gamma conversion circuit, an image signal processing circuit, and a display device. The display device is a PDP in which the light-emitting characteristics are linear. The image signal processing circuit is provided with a smoothing signal generator for smoothing image signals after reverse gamma conversion. Also provided is a detector whereby patterns that are to be processed as signals are detected from the image. The patterns include points of variation in which the gradation difference prior to reverse gamma conversion is a single gradation and in which the gradation difference is made to be two gradations or more due to reverse gamma conversion. A substitution unit is provided for substituting the smoothed gradation values in place of a portion of the gradation values of the pattern, and outputting the result to the display device.
Bibliography:Application Number: US20060432352