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Image Dynamic-Range Enhancement Based on Human Visual Adaption Mechanism

  • Minda Yang
  • Fei Qiao
  • Qi Wei
  • Huazhong Yang
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 181)

Abstract

In this paper, an image dynamic-range enhancement method is proposed based on the computational model from human visual adaption mechanism. The method can be used in the image display with weak or strong background luminance and improve the intelligent video processing efficiency of current smart cameras. Na + -Ca2 +  model and psychophysical thresholds model are analyzed respectively, then realized by proposed algorithms. Real human visual process of dark adaption is simulated. More, comparative simulations of image display dynamic-range enhancement for both dark and light adaption are carried out. The PSNR performance and detail in figures are improved simultaneously.

Keywords

visual perception visual adaption image dynamic-range image display 

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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Minda Yang
    • 1
  • Fei Qiao
    • 1
  • Qi Wei
    • 1
  • Huazhong Yang
    • 1
  1. 1.Institute of Circuits and Systems, Dept. of Electronic Engineering, Tsinghua National Laboratory for Information Science and TechnologyTsinghua UniversityBeijingP.R. China

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