Dynamic range compression algorithm for mobile display devices using average luminance values

Author

Lee, Sungmok ; Kwak, Boodong ; Han, Hagyong ; Choi, Wontae ; Kang, Bongsoon

Author_Institution

Dept. of Electron. Eng., Dong-A Univ., Busan, South Korea

fYear

2009

fDate

14-16 Dec. 2009

Firstpage

340

Lastpage

343

Abstract

This paper presents a dynamic range compression method for improving the contrast of color images. A variable transformation is applied to the input image, depending on the local dependency of the intensity. In this work, we present a local contrast correction algorithm that allows for simultaneous lowlight region and high-light region adjustments, based on multi-scale Gaussian filtering. Also, to minimize the change in color saturation between the input and the output image, we present the linear color restoration method.

Keywords

Gaussian processes; brightness; display devices; image coding; image colour analysis; image restoration; average luminance values; color images; dynamic range compression algorithm; high-light region adjustment; image contrast; linear color restoration method; local contrast correction algorithm; mobile display devices; multiscale Gaussian filtering; simultaneous lowlight region adjustment; Color; Compression algorithms; Displays; Dynamic range; Filtering algorithms; IEEE members; Image coding; Image restoration; Low pass filters; Pixel; Color Restoration; Contrast Enhancement; Dynamic Range; Dynamic Range Compression; Multi-scale Gaussian Filtering;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits, ISIC '09. Proceedings of the 2009 12th International Symposium on

Conference_Location

Singapore

Print_ISBN

978-9-8108-2468-6

Type

conf

Filename

5403951