Re: profiling monitor range
Re: profiling monitor range
- Subject: Re: profiling monitor range
- From: "eugene appert" <email@hidden>
- Date: Wed, 14 Jun 2006 10:57:19 -0400
Hello Roger,
> 7 stops?
Actually it works out to 10 stops? (1000:1)
> To my knowledge, all ICC monitor profiles are
> "encoded" that way.
Do you mean that all monitor profiles set black points at L*0 and white
points at L*100? If so, there is far too much I don't understand for me to
get my head around this. Unless perceptual rendering is used for the file to
monitor conversion, and if, as you say further, BPC is not applied to the
monitor file conversion, I am at a loss to understand how my monitor can
show me values beneath its ability to darken without interpolating those
values and compressing the reproduction curve to compensate for the smaller
range. For example, I have a profile for my Epson 700 dye-based printer
which produces a maximum shadow at L*4, which can be displayed on even the
cheapest monitor. Am I wrong to assume a light source cannot produce black?
> LED? You mean this LaCie 119 uses LED backlight technology like the NEC >
Spectraview?
Sorry no, this is was an error. The monitor is LCD TFT active matrix
> I don't see Black Point Compensation coming into play in the context of
the
> monitor profile in any system. Conversions between a document assigned
> profile and its display, to me, is outside the realms of Photoshop,
Is there some other form of compression at play then that explains why out
of range lightness values don't "plateau "at the bottom of the monitor's
ability to darken.
Thanks for your help
Eugene
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