T3D the white way to balance color

[John Toeppen <toeppen@xxxxxxxx>]

Greg wrote:
  Videophiles who get their TV calibrated (for color
temp and greyscale linearity) sometimes do this.
They illuminate the wall behind the TV with a
light of the correct color temp and brightness.

Hey, is this the same as sunlight? (he rhetoricly joked)

I frequently do weird things with stereo images that make me use the
outside world for convenient reference (focus and convergence
especially).  I also hold a piece of white (inkjet) paper next to my
monitor on a cloudy day to white balance the monitor.

I have yet to see and electronic version of a gamma chart.  Or a MTF,
ladder, gray scale, resolution, or anything useful for the computer
user.  Maybe I just haven't looked.  The HDTV video people must use
something.  That and monochromators to measure the relative intensity at
different wavelengths.  A person could do this at home if they really
cared too. A subjective adjustment using a slightly saturated (nearly
flat scan)photo with flesh and sky is a start.  If the scan is too flat
one might inadvertantly turn up color and contrast to get the most
pleasing image. 

John Toeppen

I would rather be doing weird things with autostereo........
http://members.home.net/toeppen/autost.htm
http://members.home.net/toeppen/


------------------------------