Re: anaglyph terminology

[P3D Ray Zone <r3dzone@xxxxxxxxxxxx>]

>Ray Hannisian wrote:
>> Is there an existing standardized terminology for the various following
>> anaglyph formats?
>>
>> 1. B&W with color 'fringe'
>> 2. 'Full color' anaglyphs
>> 3. "Pure", as in some comic books, where only blue and red (or green/red)
>> lines are present.

Ray Zone responds:

Since the anaglyph is inherently monochromatic (in that the complementary
lenses of red/blue or red/green divide the color wheel approximately in
half and see opposite sides) the simple use of the term anaglyph should
suffice.  This in spite of the fact that 'anaglyph' is usually defined as a
"low or bas relief." Leslie P. Dudley characterised a "full color anaglyph"
(which he produced for the British magazine 'Picture Post' in 1953) as a
POLYCHROMATIC anaglyph which seems to make a nice theoretical fit.  The
Picture Post also characterised it, somewhat misleadingly, as "colour 3-D."
Dudley discusses the anaglyph in his rare book "Stereoptics" published in
London (MacDonald & Co.) in 1951.  In theory, as far as the anaglyph is
concerned, there is no difference between a photo or a cartoon except that
the photo uses continuous halftones and the cartoon a contour outline.
Hence, in theory, one is no more "pure" than the other.  As with many other
forms and parameters of stereography a universal vocabulary, or consensual
grammar, would be useful.
>
>Standards?  are you kidding?  ;-)
>
>The terminology I prefer to use is:
>1.  pseudo monochrome anaglyph
>2.  pseudo colour anaglyph     - color if you wish :-)
>3.  dunno...  I presume you are saying no use of intermediate colours,
>              just 100% red, 100% blue, 100%blue+100%red or white.
>   Anyone else know a term for this?
>
>Andrew Woods.

Ray Zone responds:

Why the use of the term "pseudo," Andrew?  Is it because the anaglyph image
to the naked eye without the 'anaglyphoscopes' appears to be in colo(u)r?
Of course, the apparent color image is rendered into  volumetric black and
white when seen through the red/blue spectacles as approximately half the
color information is lost to each eye.  So, in some respect, we are talking
about an image in two ways: (1) as it appears to the naked eye without the
3-D glasses and (2) as it appears with them.


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