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Seeing Teapots

Seeing Teapots

Russell asks us to imagine him sitting at a brown table on which there are sheets of paper. “Although I believe that the table is 'really' of the same colour all over,” he writes, “the parts that reflect the light look much brighter than the other parts, and some parts look white because of reflected light.” He then explains how different people viewing the table from different angles, or because they might be color blind or wearing tinted glasses, see the table quite differently, all because of the way they see the reflected light. Though that realization may be unimportant to most people—we tend not to notice the play of light unless we are looking for it—to an artist it is “all-important.” He continues: “the painter has to unlearn the habit of thinking that things seem to have the colour which common sense says they 'really' have, and to learn the habit of seeing things as they appear.”

 

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Seeing Teapots
The Retina
Edge Enhancement
Definition of an Edge
Recalling Constantine VII
Sense of Three Dimensionality
Who Invented What?
The Element of 3D Perception
The Play of Light
The Importance of the Play of Light
Techniques of Artists
Direction of Light
What Do We Think 3D Is?
Scientists Mean Something Else
I Think Therefore I Am
Adding in Z
Plotting in Space
Avoiding Confusion
Rendering on a Computer
The Legend of the Teapot
Artificial Light
Topography
The Height Map
Height Data vs Body Distance
Gabriel Quidor
VP-8 Image Analyzer
Body to Cloth Distance
Picknett and Prince and 3D
Caused by a Lengthy Exposure in the Sun?
Why Picknett and Prince Are Wrong
Cyberspace Speculation
Adjusting Scale
Thanks to Nicholas Allan
The images, closely examined with the aid of microscopes
One Straw-Yellow Color
Pixel, like salt, means different things. Each
Pixels in Photography
Pixels in the Shroud Image?
One Color, Different Density
Impurity Layer Disputed
Small Measurements
Flax Fibers
Chemical Changes and the Impurity Layer
Maillard Reaction
Rogers Theory about Saponaria officinali
Cadaverine and Putrescine
More Image Attributes
Saturation
The Second Face
Superficial
Mind Numbing Realism
Misconceptions About Post Mortem Blood Flow
Hard to Imagine Art in the Realism
Pathological Detail
Crown of Thorns
Wrist Wounds
Without Precedent
Blond Hair Issue
Hair Color Has Nothing to do with Light
Not Really Gaunt
Banding Again