Kristian Jörg wrote:
Yes. But when you are profiling a monitor for gamma tracking. Do you not
measure *luminance* to
create a profile that will contain the corrections neccessary to obtain that
gamma tracking. I am
just trying to get the grips here...
Yes, but it's relative. Relative means that the values get normalized to
the maximum/white. So any error in the absolute level is ignored.
Example:
Instrument A measures:
100.0 cd/m^2 at 100%
35.0 cd/m^2 at 50%
that's a gamma of 1.514 [log(35/100)/log(.5)]
Instrument B has an error of 10%:
110.0 cd/m^2 at 100%
38.5 cd/m^2 at 50%
that's a gamma of 1.514 [log(38.5/110)/log(.5)]
Graeme Gill.
