1. Introduction 2. The Classic Period 3. The Katz Period 4. The Gestalt Period 5. The Contrast Period 6. The Computational Period 7. Computational Models 8. Illumination Perception 9. The Anchoring Problem 10. Errors in Lightness 11. An Anchoring Model of Errors 12. Theories of Lightness 13. Concluding Thoughts Glossary Bibliography
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