Contributo in atti di convegno, 2012, ENG, 10.1145/2338676.2338685

Dynamic range compression by differential zone mapping based on psychophysical experiments

Banterle F.; Artusi A.; Sikudova E.; Bashford-Rogers T. E. W.; Ledda P.; Bloj M.; Chalmers A.

CNR-ISTI, Pisa, Italy; Departament d'Informtica i Matemtica Aplicada Universitat de Girona, Spain; Department of applied informatics, Comenius University, Bratislava, Slovakia; WMG, University of Warwick, UK; MPC Ltd, UK; University of Bradford, UK; WMG, University of Warwick, UK

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.

ACM Symposium on Applied Perception, pp. 39–46, Los Angeles, CA, USA, 3-4 August 2012

Keywords

High dynamic range imaging, Tone mapping, Perceptual tone mapping, I.3.3 Picture/Image Generation Display Algorithms, I.4.0 IMAGE PROCESSING AND COMPUTER VISION. General. Image displays

CNR authors

Banterle Francesco

CNR institutes

ISTI – Istituto di scienza e tecnologie dell'informazione "Alessandro Faedo"

ID: 215578

Year: 2012

Type: Contributo in atti di convegno

Creation: 2013-05-21 13:11:33.000

Last update: 2018-10-18 16:01:28.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:215578

DOI: 10.1145/2338676.2338685

Scopus: 2-s2.0-84865531861