[opendtv] Re: New Chips Improve Color TV Dramatically
- From: Doug McDonald <dtvmcdonald@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 29 Jun 2004 17:50:25 -0700 (PDT)
--- Alan Roberts <roberts.mugswell@xxxxxxxxxxxxxx>
wrote:
> Mark, we all agree that they are near identical.
I do not agree. The blues are near identical.
The reds are very close.
The greens except the original NTSC (and Adobe RGB)
green are very close. The original NTSC is wildly
different from all the others (except Adobe RBG), and
is wildly inferior. The NTSC green is green, the
other are a rather sickly yellow green.
And my eye is pretty well calibrated from decades of
staring at pure, monochromatic, at the edge of the CIE
diagram, lasers. I can tell with 10 nm the wavelength
of any color, and within 3 nm for the 555-620 nm, just
by looking. This gives some idea of what a trained
person can do at the edge of the chart. Inside, while
I can do pretty well at the dominant wavelength,
I have no good ability to tell saturation ...
especially in the blue-green.
Doug McDonald
=====
Doug McDonald
my last name at scs dot uiuc dot edu, not here at Yahoo, please
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