High quality image synthesis of fast local adaptive tone mapping

DOI Web Site 6 References
  • Shimoyama Sousuke
    Graduate School of Information Science and Technology, Hokkaido University
  • Ikebe Masayuki
    Graduate School of Information Science and Technology, Hokkaido University
  • Igarashi Masaki
    Graduate School of Information Science and Technology, Hokkaido University
  • Mizuno Akira
    Graduate School of Information Science and Technology, Hokkaido University
  • Motohisa Junichi
    Graduate School of Information Science and Technology, Hokkaido University

Bibliographic Information

Other Title
  • 高速局所的輝度補正技術の高画質化の検討(高機能イメージセンシングとその応用)
  • 高速局所的輝度補正技術の高画質化の検討
  • コウソク キョクショテキ キド ホセイ ギジュツ ノ コウガシツカ ノ ケントウ

Search this article

Description

Local Histogram Equalization (LHE), which is efficient for High Dynamic Range (HDR) compression, requires a large amount of calculation and induces unnatural image quality. Using checker-wise histogram acquisition and line buffer, memory accessing for local histograms is processed in O(1) time. For improving image quality, we proposed approximation of LHE by compositing gamma functions. Moreover the control of local histogram is developed by introducing mean values of bins for suppression of stripe artifacts arising from small number of bins and halo effect. Using C++, we achieved two million pixels per 0.45sec operation.

Journal

  • ITE Technical Report

    ITE Technical Report 35.19 (0), 13-16, 2011

    The Institute of Image Information and Television Engineers

References(6)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top