Joint enhancement of lightness, color and contrast of images and video

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United States of America Patent

PATENT NO 9053523
APP PUB NO 20140044352A1
SERIAL NO

13923451

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Abstract

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In some embodiments, color and contrast enhancement video processing may be done in one shot instead of adjusting one of color and contrast enhancement, then the other, and then going back to the first one to readjust because of the second adjustment. In some embodiments, global lightness adjustment, local contrast enhancement, and saturation enhancement may be done at the same time and in parallel. Lightness adjustment improves visibility of details for generally dark or generally light images without changing intended lighting conditions in the original shot, and is used to enhance the range of color/saturation enhancement. Local contrast enhancement done in parallel improves visual definition of objects and textures and thus local contrast and perceived sharpness.

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Patent Owner(s)

  • INTEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caviedes, Jorge E Mesa, US 45 466
Sarkar, Abhijit Rochester, US 24 226
Subedar, Mahesh Laveen, US 14 119

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