Adjusting Scale
With any height-field, you can adjust the scale to just about anything you want. You can make crest of a crater’s edge or the nose on the shroud face seem as high as Mount Everest or so low that only an ant could notice the perturbations on the surface. Not knowing the scale is not a problem if you have a basis for estimating it. For instance, if you are reasonably sure that the image is of a man, adjusting the scale to what seems reasonable for a man is appropriate.
Picknett and Prince were right when they wrote, “we . . . believed that the Shroud exhibits amazing, inexplicable, and unique 3-D information. . . . we could not see how [Leonardo da Vinci] had managed to produce that particular effect and felt that attempting to replicate it would be a real stumbling block in our experimental work. Had they tried they would have certainly found that it was a real stumbling block.
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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