Automatic dynamic range adjustment in digital imaging

Details Automatic dynamic range adjustment in digital imaging Automatic dynamic range adjustment in digital imaging

2011-08-16

2011-08-16

Repko, Jason M (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S167000, C382S168000, C382S169000, C382S254000, C358S001600, C358S001900

Reexamination Certificate

active

08000554

ABSTRACT:
A method of performing non-linear transformation of a digital image for contrast modification. The original video input is compared to a linear transformation with gain and offset; and, the differential of the change in gain or slope and the input image Δ is multiplied by a factor m obtained from a look-up table and the product of m and Δ added to the original input to obtain the output video.

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