SELECTIVE LOCAL TONE MAPPING

Artusi A., AKYÜZ A. O., Roch B., Michael D., Chrysanthou Y., Chalmers A.

20th IEEE International Conference on Image Processing (ICIP), Melbourne, Avustralya, 15 - 18 Eylül 2013, ss.2309-2313 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Melbourne
  • Basıldığı Ülke: Avustralya
  • Sayfa Sayıları: ss.2309-2313
  • Anahtar Kelimeler: Tone mapping, high dynamic range imaging, GPU, real-time, REPRODUCTION
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

When preparing high dynamic range images (HDR) for display on standard monitors, it is often necessary to make a choice between global and local tone mapping. While the former is simple and efficient, it may fail to reproduce details in high contrast image regions. Although, the latter can better reproduce details in such regions, it often comes at the cost of increased complexity and computational time. In this paper, we present an algorithm that combines the best of both approaches. We perform local tone mapping only in high frequency image regions where the visibility of details can be an issue. In low frequency regions, we employ global tone mapping to save computational resources without degrading quality. Our algorithm is most suitable for tone mapping operators (TMOs) that utilize the concept of local adaptation luminances.