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Avoiding Confusion

We therefore need to define some terms to work with  to avoid confusion. We will call 3D movies and 3D still pictures that you view with special glasses Anaglyph. Regular photographs and paintings in which the artist has represented depth by the play of light, placement of things and geometric perspective are 3D representations or 3D. Flat paintings and drawing such as the profiles found in Egyptian tombs or on the sides of Greek vases we will call 2D. A drawing of a square is in this sense a 2D picture. A drawing of a cube is a 3D picture. So too is a painting of a bowl of fruit and a portrait of George Washington or a photograph of Abraham Lincoln taken by Matthew Brady. The image on the Shroud of Turin is none of these things. That needs to be repeated. The image on the Shroud of Turin is none of these things.

 

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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