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In a message dated 11/7/2005 10:12:28 P.M. Eastern Standard Time,
shahjen@xxxxxxxxxxxx writes:
Colour space / gamut is the limit of colours a device can represent >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
No, Color Space is an artificially theoretical construct. Color space
is not the limits of a device. For example my first Viewsonic monitor exhibited
both some colors of sRGB and some colors of Adobe98 color space. Color space is
a three dimensional construct that is defined by 8 numbers representing the
location of the x, y and z (primaries R, B and G on the x-y axises and
white point on the z axis. Lab Color space is exempted from this definition
because it is defined in a different manner with different variables.
You can describe a device as having a certain gamut usually in general
terms. A description of a device colors would be generated by
spectrometer and the data plotted on a two dimensional or three dimensional
graph. (Then this data is generally converted into a profile to shows the colors
as we expect to see them on the device.)
As you said different devices have different gamuts. Once you have forced
all the colors into a certain space you can make comparisons between the color
spaces. sRGB is larger than CYMK space and thus if going to process color
printing you lose colors. Adjusting the images can be done to give it the
best looking rendition in CYMK space when printed.
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