Re: poor anaglyph quality on the WEB

[P3D Dr. Bob Wier <wier@xxxxxxxxxxxxxxx>]

snip...

|Getting a good image in the first place is quite a trick.  Film
|generally has a much higher spatial resolution and dynamic range (light
|to dark) than electronic images.  That is why it is important to scan
|images at 36bits per pixel or more, even if the image will only be
|stored with 24 bits of color.  After scanning, the image can be
|adaptively squeezed into 24 bits in a way that preserves most of the
|detail.  There are valid technological reasons for Kodaks Photo-CD
|image format, and many of them have to do with preserving the details
|caught by films broad dynamic range.
|
|For a more specific explanation of scanning and why I scan 35mm images
|at 2,700DPI with 36bits of color, see
|http://www.skypoint.com/~catalyst/stereoscopic.html#services
|

snip

Jon also has a nice table here on differing formats, aspect ratios, etc.

Worth a look.

        mailto:wier@xxxxxxxxxxxxxxx
    04:47 AM Saturday, August 16, 1997
     Texas A & M University - Commerce
 keeper of the Photo-3d and  Overland-Trails
mailing lists and LDS State Research Outline Guides
 new address: mailto:wierb@xxxxxxxxx 



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