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acirc  clipping white  clipping  module clipping  module  profiler scanner  profiler  scanner module  scanner  software  white 
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colorsync-users Mailing List



colorsync-users Mailing List



Published: 2016-11-30T23:35:02-08:00

 



XRite Device Services update fail
From: Scott Martin
Reply to list

FYI I have a brand new Windows10 machine and I installed i1Profiler 1.6.3 with XRD 2.3.9.4 last week and have used several i1Pro2 devices with it without problem. The auto update to i1Profiler 1.6.7 with XRD 2.4.0.1 killed device connectivity. The device manager doesn’t like the driver. [...]



Re: DTP94 and new Mac OS compatibility3.
From: Axel Robert
Reply to list

Hello Péter,

basICColor prepared A framework which worked well for Mavericks. This latter is unfortunately unable to be loaded under Mac OS El Capitan. It systematically crashes the software itself.

Thank you anyway for your answer.


Hello Florian,
 [...]



Re: DT94 and new Mac OS compatibility.
From: Florian Höch
Reply to list
Hi,

DisplayCAL (a GUI for Argyll CMS) runs on Mac OS X. It can calibrate &
profile displays, measure ambient as well as help adjusting a monitor to
a light booth visually.

Am 21.11.2016 um 16:21 schrieb Axel Robert:

[...]

http://displaycal.net/
 



Re: DTP94 and new Mac OS compatibility.
From: Péter Nagy
Reply to list

Hi Axel,
basiccolor 5 will calibrate a display using the DTP94. I'm not sure, whether it has an ambient light measurement function.
http://www.basiccolor.de/basiccolor-display-5-en/

Kind regards,

Péter Nagy
Colorcom MediaBudapest, Hungary
On Mon, 11/21/2016 09:00 PM, email@hidden wrote:

[...] [...]



DT94 and new Mac OS compatibility.
From: Axel Robert
Reply to list

Dear ColorSyncers,

I would like to know if anybody knows a current software available to drive the venerable DT94 colorimeter on Mac OS (El Capitan)?

Unless to be able to obtain the proper driver?

The goal is to adjust a light booth.

Thank you.
Axel


Axel Robert | Prepress Manager [...]



Photo-Research PR-704 spectroradiometer
From: Roger Breton
Reply to list
Looking for software installation disks for this old instrument.

The computer I had that was hosting the installed software went bust.

Naturally, I had no backup :(



/ Roger

www.graxx.ca

 



Re: i1 Profiler Scanner module, clipping white
From: tyler boley
Reply to list
isn't the i1profiler scanner module descended from Monaco Profiler? I
recall those scanner profiles clipped whites depending on rendering
intent when converting to working space.



Re: i1 Profiler Scanner module, clipping white
From: Scott Martin
Reply to list
Hey Barry! Personally I’ve found Epson Scan to be excellent when everything is turned off and CM set to 'No Color Correction'. For some reason I haven’t found the Colorsync option to be reliable when assigning the profile and converting it to the working space, so I always do so in Photoshop and have had fantastic, consistent results doing so.

Also, FYI I’ve found Basicccolor Input’s scanner and camera profiles to be an improvement over i1Profiler. Basiccolor Input is brand new software with some neat new technology we haven’t seen anywhere else. These are the small differences that only people like yourself would appreciate! Try it out if you haven’t already.

Scott Martin
www.on-sight.com



 



Re: Fwd: Re: i1 Profiler Scanner module, clipping white
From: Mark Stegman
Reply to list
It's a while since I used the 10000XL but ours came with Silverfast. Not as
simple as the Epson interface but well regarded. I can't recall the details
of scanner profiling procedure now but I would have thought it better than
the Epson.

Mark

On 11 November 2016 at 23:21, David Scharf <email@hidden>
wrote:

[...]



Re: Fwd: Re: i1 Profiler Scanner module, clipping white
From: David Scharf
Reply to list

Yes, Vuescan (pro) is very capable software. It is one software program
that I use with my Epson V750. The biggest problem with it, is that it
does not keep your preview in memory. You have to do a new preview every
time you open it back up which can be a big time waster if you have more [...]



Fwd: Re: i1 Profiler Scanner module, clipping white
From: Ernst Dinkla
Reply to list

Vuescan supports the 10000XL and much more scanner models. Works in 3 OS
environments. It allows a RAW DNG export (disguised Tiff) without any
influence on the image. Could be a good start for this instead of using the
Epson software. Add a whiter patch than the original to the scan, for [...]



Re: i1 Profiler Scanner module, clipping white
From: John Castronovo
Reply to list

Yes. I've been doing the same thing Barry. It's second nature for me to
change those end points after every preview, but still annoying that
checking 'no correction' never means what it says. Another annoyance is that
there doesn't appear to be a way to turn sharpening completely off. [...]



Re: i1 Profiler Scanner module, clipping white
From: Ben Goren
Reply to list
[...]

This is incorrect. The D1 white patch on a ColorChecker Passport is typically around L*=96, a*=0, b*=4, which is roughly sRGB R=246, G=244, B=236. An ideal capture device is going to be reporting similar native RGB values.

[...]

This is very bad advice, unless the intended workflow is to always apply the exact same channel clipping to all images prior to assignment of the native profile -- which itself is an highly questionable practice.

Any half-decent image capture pipeline, whether from a scanner or a camera, is going to offer some method of channel balancing to at least roughly align the neutral axis to the destination space. The consumer ones do it automagically, perhaps with an eyedropper tool to assist the algorithms. Many offer sliders of various kinds to let the user eyeball it. The real stuff lets you specify it explicitly, in addition to whatever user-friendly crutches they might offer.

ICC profiles are only going to be truly valid for the exact same actual scene illuminant and software channel balance settings, though many find them "close enough" for a wider range. But a scanner has a built-in illuminant that should be reasonably stable, meaning that the channel multipliers should be set once and forgotten about, and an ideal ICC profile will be equally valid for all scans made from that device.

Cheers,

b&
 



Re: i1 Profiler Scanner module, clipping white
From: ygroups
Reply to list

White patch should be 255 one your target, unless you want some clipping. If you can’t get it that way from the scanner open the patch with no CM in photoshop and use the levels command to just get it there. Then save and import that target into i1Profiler.

Doyle

[...] [...]



Re: i1 Profiler Scanner module, clipping white
From: Barry Rudick
Reply to list
Martin replies:

[...]

We have replaced our very old 10000XL with the 11000XL.

Scanning with “No Color Correction” seems very stable. White patch on Colorchecker is around 240, 241 with no profile of course.

When using the “Colorsync” configuration in EpsonScan it is necessary to open the Histogram panel and zero out the auto corrections that the software presents. Annoying.

Thanks for the response.


Cheers,


Barry Rudick
Aker Imaging




 



i1 Profiler Scanner module, clipping white
From: Barry Rudick
Reply to list
Creating scanner input profiles with the scanner module in i1 Profiler seems to create profiles that clip the white point.

I created a Version 4 profile that clips more than a Version 2.

Scanned a Colorchecker 24 and then processed in i1 Profiler. The resulting profile used in Epson Scan application clips the white patch perilously close to pure white with a Version 4 icc profile.
Of course I am using the Colorsync configuration in the scanning application.
The Version 2 clips less but still pushes the white patch high enough to cause potential clipping in originals that are brighter than the white patch of the Colorchecker 24.

Anyone experience this?



Barry Rudick
Aker Imaging
Houston, TX