Real-time local contrast enhancement algorithm for video cameras with built-in noise and artifact suppression

S.D. Cvetkovic, J. Schirris, P.H.N. With, de

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Abstract

For real-time imaging with digital video cameras, visibility of details is very important to ensure user confidence. Many complex scenes require local contrast improvements that should bring details to the best possible visibility. However, local enhancement methods mainly suffer from ringing artifacts and over-emphasizing noise. We present a multi-window real-time high-frequency enhancement scheme, in which gain is a nonlinear function of the detail energy. Our algorithm controls perceived sharpness, ringing artifacts (contrast) and noise, resulting in a good balance between visibility of details and non- disturbance of artifacts. The new scheme can be successfully applied to any class of video system that would benefit from contrast improvement.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Consumer Electronics 2008, ICCE 2008, 9-13 January 2008, Las Vegas, Nevada
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages3.4-4-1/2
ISBN (Electronic)978-1-4244-1459-8
ISBN (Print)978-1-4244-1458-1
DOIs
Publication statusPublished - 2009
Event2008 IEEE International Conference on Consumer Electronics (ICCE 2008) - Las Vegas, United States
Duration: 9 Jan 200813 Jan 2008

Conference

Conference2008 IEEE International Conference on Consumer Electronics (ICCE 2008)
Abbreviated titleICCE 2008
CountryUnited States
CityLas Vegas
Period9/01/0813/01/08

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