Dynamic Range Compression by Differential Zone Mapping Based on Psychophysical Experiments

ACM Symposium on Applied Perception (SAP) - August 2012
Download the publication : acm_sap_2012_tmo.pdf [25.9Mo]   img_htmo_first_experiment.pdf [17.2Mo]   img_htmo_val_second_experiment.pdf [15.2Mo]  

Source code in the HDR Toolbox (BanterleTMO.m)


In this paper we present a new technique for the display of High Dynamic Range (HDR) images on Low Dynamic Range (LDR) displays. The described process has three stages. First, the input image is segmented into luminance zones. Second, the tone mapping operator (TMO) that performs better in each zone is automatically selected. Finally, the resulting tone mapping (TM) outputs for each zone are merged, generating the final LDR output image. To establish the TMO that performs better in each luminance zone we conducted a preliminary psychophysical experiment using a set of HDR images and six different TMOs. We validated our composite technique on several (new) HDR images and conducted a further psychophysical experiment, using an HDR display as reference, that establishes the advantages of our hybrid three-stage approach over a traditional individual TMO.

Schematic description of our Framework. First, the HDR input image is segmented into luminance zones and a zone map is created. Second, the optimal TMO for each zone is applied on the whole input image generating different output images (one for each zone). Finally the tone mapped images are merged and the final output is generated. (For visualization purposes we only show the specific zone tone mapped in the Tone Mapped Zones image on the right.)

Images and movies


BibTex references

  author       = "Banterle, Francesco and Artusi, Alessandro and Sikudova, Elena and Bashford-Rogers, Thomas Edward William and Ledda, Patrick and Bloj, Marina and Chalmers, Alan",
  title        = "Dynamic Range Compression by Differential Zone Mapping Based on Psychophysical Experiments",
  booktitle    = "ACM Symposium on Applied Perception (SAP)",
  month        = "August",
  year         = "2012",
  publisher    = "ACM Press",
  key          = "high dynamic range imaging, tone mapping, perceptual tone mapping",
  url          = "http://vcg.isti.cnr.it/Publications/2012/BASBLBC12"

Other publications in the database

» Francesco Banterle
» Alessandro Artusi
» Elena Sikudova
» Thomas Edward William Bashford-Rogers
» Patrick Ledda
» Marina Bloj
» Alan Chalmers