US 8,451,288 B2 · Image signal processing apparatus

Abstract

The present invention relates to an image signal processing apparatus capable of reproducing the appearance of an image that is displayed on a PDP. In an image processing unit 1, as a process for an image signal so that an image obtained when the image signal is displayed on a display apparatus of a display type other than that of a PDP can look like an image displayed on a PDP display apparatus, at least one of reproducing color shift caused by a moving image which is produced because lighting of RGB is turned on in this order, reproducing a dither pattern to be applied in a space direction, reproducing a dither pattern to be applied in a time direction, reproducing a space between pixel pitches, and reproducing a stripe array is performed. The present invention can be applied to a case where, for example, an image that can look like an image displayed on a PDP is to be displayed on an LCD.

Claims12

Dependent claims

An image signal processing apparatus for processing an image signal so that an image obtained when the image signal is displayed on a display apparatus of a display type other than that of a PDP (Plasma Display Panel) looks like an image displayed on a PDP display apparatus, comprising at least one of:

means for reproducing a dither pattern to be applied in a space direction and adding the dither pattern to be applied in the space direction to the image signal;
and
means for reproducing a dither pattern to be applied in a time direction and adding the dither pattern to be applied in the time direction to the image signal, wherein
the image signal processing apparatus further comprises
means for storing presence or absence of at least one of the dither pattern to be applied in the space direction and the dither pattern to be applied in the time direction for each RGB (Red, Green, and Blue) color pattern.

2 more elements

a spatial dither adding unit configured to reproduce a dither pattern to be applied in a space direction and to add the dither pattern to be applied in the space direction to the image signal;
a temporal dither adding unit configured to reproduce a dither pattern to be applied in a time direction and to add the dither pattern to be applied in the time direction to the image signal, wherein
the image signal processing apparatus further comprises
a storage unit configured to store presence or absence of at least one of the dither pattern to be applied in the space direction and the dither pattern to be applied in the time direction for each RGB (Red, Green, and Blue) color pattern.

1 more element

Dependencies are inferred from the claim text.

Image signal processing apparatus

Life of this patent

Image signal processing apparatus

Life of this patent

Abstract

Claims12