Visual processing device, visual processing method, visual...

Details Visual processing device, visual processing method, visual... Visual processing device, visual processing method, visual...

2011-05-17

2011-05-17

Couso, Yon (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S169000

Reexamination Certificate

active

07945115

ABSTRACT:
A visual processing device that achieves gradation processing and further enhances a visual effect. The visual processing device1performs gradation processing for each image region of an input signal IS, and includes an image partitioning portion2, a gradation transformation curve derivation portion10, and a gradation processing portion5. The image partitioning portion2and the gradation transformation curve derivation portion10use a brightness histogram Hm of a wide area image region Em to create a gradation transformation curve Cm of an image region Pm. The gradation processing portion5performs gradation processing of the image region Pm based on the derived gradation transformation curve Cm.

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