Signal processing apparatus, signal processing method,...

Details Signal processing apparatus, signal processing method,... Signal processing apparatus, signal processing method,...

2004-05-13

2009-10-06

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C349S033000, C345S087000, 37, C375S240030

Reexamination Certificate

active

07599574

ABSTRACT:
A signal processing apparatus supplied with a signal obtained by performing orthogonal transform on a video signal corresponding to a plurality of pixels includes a correction circuit for correcting the orthogonal-transformed signal, by using correction values obtained by performing orthogonal transform equivalent to the orthogonal transform on measured values obtained by measuring nonuniformity of display characteristics of a display device, which performs display on the basis of a signal processed by the signal processing apparatus. In addition, an inverse orthogonal transform device performs inverse orthogonal transform on a signal corrected by the correction circuit and thereby obtains a corrected video signal.

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