Power-constrained contrast enhancement for OLED displays based on histogram equalization

Chul Lee, Chulwoo Lee, Chang-Su Kim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    23 Citations (Scopus)

    Abstract

    A novel power-constrained contrast enhancement algorithm for organic light-emitting diode (OLED) displays is proposed in this work. We first develop the log-modified histogram equalization (LMHE) scheme, which reduces overstretching artifacts of the conventional histogram equalization technique. Then, we model the power consumption in OLED displays, and incorporate it into LMHE to achieve the optimal tradeoff between contrast enhancement and power saving. Simulation results demonstrate that the proposed algorithm can reduce the power consumption significantly, while preserving image qualities.

    Original languageEnglish
    Title of host publication2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
    Pages1689-1692
    Number of pages4
    DOIs
    Publication statusPublished - 2010
    Event2010 17th IEEE International Conference on Image Processing, ICIP 2010 - Hong Kong, Hong Kong
    Duration: 2010 Sept 262010 Sept 29

    Publication series

    NameProceedings - International Conference on Image Processing, ICIP
    ISSN (Print)1522-4880

    Other

    Other2010 17th IEEE International Conference on Image Processing, ICIP 2010
    Country/TerritoryHong Kong
    CityHong Kong
    Period10/9/2610/9/29

    Keywords

    • Contrast enhancement
    • Histogram equalization
    • OLED
    • Power saving

    ASJC Scopus subject areas

    • Software
    • Computer Vision and Pattern Recognition
    • Signal Processing

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