Re: Strange converion behavior
Re: Strange converion behavior
- Subject: Re: Strange converion behavior
- From: David Scharf <email@hidden>
- Date: Fri, 04 Feb 2005 16:30:49 -0800
Title: Re: Strange converion behavior
I haven't heard much mention of ProfilerPro in recent discussions.
Where does this profiling package rate in the big picture. I use it
with a SpectroCam, but I am interested in the opinions of you real
color pros. Thanks.
DAVID SCHARF PHOTOGRAPHY
Scanning Electron Microscopy
Phone 323-666-8657
Fax 323-666-0449
2100 Loma Vista Place
Los Angeles, CA 90039
http://www.scharfphoto.com
http://www.electronmicro.com
Andrew Rodney wrote:
On 2/4/05 5:05 PM,
"Mike Eddington" wrote:
I
expect the blues to shift some, even a lot ...
No, they really shouldn’t. You will see a reduction in the saturation
but blue should not shift/look cyan or magenta! It’s been a common
issue with profiles from many manufacturers in the past but it’s not
something you should automatically expect and accept.
I
agree. I did the same conversion with 4.7 and it nice and smooth with
exceptional blues.
You got blue,
right? That wasn’t always the case. One of my big beefs with previous
versions was both the smoothness of the blues and the shifting. 4.7 is
now up there with my “gold standard” for blues which has been the GMB
packages. In fact, 4.7 seems to be smoother and I measured a few less
patches to build the RGB profile.
The
PerfX profile had a slight purplish tendency to the blues and some
banding
That’s exactly what
I see in a spectral gradient and of course the Granger Rainbow is
another useful file for seeing this kind of stuff. Banding is kind of
bad, shifting is really bad. It’s interesting to output the same test
images with this kind of synthetic stuff using multiple profiles from
different packages to the same printer.
Andrew Rodney
http://digitaldog.net/
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