Re: Converting current profiles for old OS versions
Re: Converting current profiles for old OS versions
- Subject: Re: Converting current profiles for old OS versions
- From: Matthew Ward <email@hidden>
- Date: Fri, 16 Sep 2011 08:20:03 +0100
Hi
Essentially
Matrix based profiles are used for devices that behave themselves -
they multiply the colour signals by a 3x3 (for RGB) matrix of numbers.
(Often used for monitors)
LUT (Look up table) profiles have a series of measurements of the
colour space embedded in them and are used for things that behave
slightly more erratically - (like printers).
You should not experience much of a problem using V2 profiles, they
are just as wide, its more about getting exactly the same answers out
of different colour management systems.
If you care, there is a technical explanation at www.color.org which
contains simple straightforward blindingly obvious statements like:
'More consistent and higher quality perceptual intent transforms
because there is now a fully-defined perceptual reference medium
dynamic range and gamut'.
Does OS 9.2 support DVI?
Best
Matthew Ward
On 14 Sep 2011, at 10:10, Jonathan Taylor wrote:
Thanks all for the helpful answers. I just spent a productive hour
testing
some of the suggestions. Blue Eye Pro has an option to make a
version 2
profile, and I found in the Advanced section that it was already set
to
"Matrix-Profile." (The other option was "LUT-Profile." Can anyone
tell me
what the difference is?) As predicted this created a profile that
could be
used on 10.6.8, 10.5.8, 10.4.11 and 9.22.
Is there anything I am losing by using a v2 instead of a v4 profile?
Any
concerns with v2 and my wide gamut monitor?
BTW, all Macs are connected to the monitor with DVI through a DVI KVM.
Although no one has commented on it so far, doesn't the fact that my
monitor
has its own hardware LUT also help ensure that four Macs can share
the same
profile? Wouldn't the monitor harware LUT also make this setup work
with
analog/VGA connections, since the video card shouldn't be involved?
jt
On Tue, Sep 13, 2011 at 3:13 AM, Matthew Ward <
email@hidden> wrote:
On 12 Sep 2011, at 03:28, Jonathan Taylor wrote:
***[To cut to the chase, here's the question]***
Can I-- and how do I-- convert a monitor profile created by Lacie's
Blue
Eye
Pro software (v1.0.16) under 10.6.8 to a profile format that OS9 will
recognize?
There are essentially 2 sorts of profile, V2 (version 2) and V4
(version
4).
If you are creating v4 profiles with your software they are not
backwardly
compatible.
If you create a v2 profile OS9 should see it.
You may or may not be able to specify which type of profile to
create in
your software.
I am not aware of any way to convert a v4 profile into a v2 using
software.
Best
Matthew Ward
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