文档介绍：A Visibility Matching Tone Reproduction Operator
for High Dynamic Range Scenes
Gregory Ward Larson†
Building Technologies Program
Environmental Energy Technologies Division
Ernest Orlando Lawrence Berkeley National Laboratory
University of California
1 Cyclotron Road
Berkeley, California 94720
Holly Rushmeier
IBM . Watson Research Center
Christine Piatko††
National Institute for Standards and Technology
January 15, 1997
This paper is available electronically at:
Copyright 1997 Regents of the University of California
subject to the approval of the Department of Energy
† Author's current address: Silicon Graphics, Inc., Mountain View, CA.
†† Author's current address: JHU/APL, Laurel, MD.
LBNL 39882
UC 400
A Visibility Matching Tone Reproduction Operator
for High Dynamic Range Scenes
Gregory Ward Larson
Lawrence Berkeley National Laboratory
Holly Rushmeier
IBM . Watson Research Center
Christine Piatko
National Institute for Standards and Technology
ABSTRACT
We present a tone reproduction operator that preserves
visibility in high dynamic range scenes. Our method
introduces a new histogram adjustment technique, based on
the population of local adaptation luminances in a scene.
To match subjective viewing experience, the method
incorporates models for human contrast sensitivity, glare,
spatial acuity and color sensitivity. pare our results
to previous work and present examples of our techniques
applied to lighting simulation and electronic photography.
Keywords: Shading, Image Manipulation.
1 Introduction
The real world exhibits a wide range of luminance values. The human visual system is
capable of perceiving scenes spanning 5 orders of magnitude, and adapting more
gradually to over 9 orders of magnitude. Advanced techniques for producing synthetic
images, such as radiosity and Monte Carlo ray tracing, compute the map of luminances
that would re