alt.astronomy:
When film photography was big the Kodak neutral gray card placed
in the photo was a useful way to check the colors in the resulting
print.
Is there a map that shows the maximum number of 255 colors for each
of the R, G, and B hues? Additionally, it would also show all possible
255 grays.
My computer graphics card and monitor can display 255^3 possible
color hues, however, providing a file with examples of all possible
combinations of colors has no practicality.
That file could be posted in both the .tif and .jpg file formats, and
imagers could check the displayed performance of their graphics
cards, monitors, and monitor brightness and contrast settings.
Ralph Hertle
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