Tone Mapping Techniques and Color Image Difference
in Global Illumination

Kresimir Matkovic


Dissertation Tone Mapping Techniques and Color Image Difference in Global Illumination ausgeführt zum Zwecke der Erlangung des akademischen Grades eines Doktors der technischen Wissenschaften unter der Leitung von Prof. Dr. Werner Purgathofer E186 Institut für Computergraphik eingereicht an der Technischen Universität Wien Technisch-Naturwissenschaftliche Fakultät von Dipl.-Ing. Kresimir Matkovic Matr.-Nr. 9426659 Rötzergasse 20/5, A-1170 Wien

Wien, im December 1997

• Contents
• Introduction
• Color Science Basics
• Photometry and Radiometry
• Light
• Radiometry
• Photometry
• Colorimetry
• Human Vision
• Just Noticeable Difference
• Brightness as a Function of Luminance
• Brightness as a Function of Reflectance
• Adaptation and Veiling Luminance
• Contrast Sensitivity Function
• Display Devices
• Slides and Goldberg Rule
• CRTs
• Linear Scale-Factor Methods
• Mean Value Mapping
• Interactive Calibration
• Logarithmic Histogram
• Varying aperture
• Varying contrast
• Mapping of the Interval
• Conclusion
• Ward's Contrast Based Scale-factor
• Non-Linear Scale-Factor Methods
• Schlick's Mapping
• Exponential Mapping
• Tumblin and Rushmeier's Mapping
• Model of Visual Adaptation
• Visibility Matching Tone Reproduction Operator
• Minimum Information Loss Methods
• Search for the Optimum Contrast Interval
• How is it done in Photography?
• Mean Light Method in Photography
• Main Goal of the Optimization
• Minimum Information Loss
• Building a Logarithmic Histogram
• Search for the Optimum Clipping Interval
• Clipping Error
• Minimum Area Loss
• Mapping of the Interval
• Limited Information Loss
• Incident Light Metering
• Light Metering in Photography
• Incident Light Metering in Computer Graphics
• Irradiance Computation
• Simple Ray Tracing without Interreflections
• Distribution Ray Tracing
• Radiosity
• Color Case
• Conclusion and Future Work
• Color Image Difference
• Contrast Sensitivity Function
• The Main Idea
• Algorithm Details
• Modified CIE LUV Color Difference Formula
• Color Image Difference in a Distance Range
• Image Query
• Algorithm Summary
• Conclusion and Future Work
• Results
• Tone Mapping Techniques
• Color Image Difference
• Conclusion
• Raw Image File Formats
• Radiance RGBE Format
• Pixar's Log Format
• SGI's LogLuv Format
• References
• About this document ...