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ICC profile for a light box



 
 
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  #21  
Old July 31st 18, 02:58 PM posted to rec.photo.digital,sci.engr.color,sci.image.processing
dale
external usenet poster
 
Posts: 187
Default ICC profile for a light box

On 7/31/2018 9:01 AM, Savageduck wrote:
On Jul 31, 2018, dale wrote
(in article ):

On 7/30/2018 9:57 PM, nospam wrote:
In ,
wrote:

might be a nice feature for Lightroom ... compatible with some
measurement instruments ... and data like viewing angle, white point, etc.

lightroom has been fully colour managed since day one.


there is a difference between managing color and managing appearance,
look up CIECAM02 on wikipedia

viewing environment like a light room is one variable in appearance


What exactly do you believe is a *light room*?



a viewing environment a lab makes an agreement with its customer's as to
how their final product will look in their viewing environment

yes, this can can be a monitor setup, that involves viewing angle and
other "appearance" facts other than just "color"

could be a lightbox too ...

a monitor environment is a soft proof
a prepress proof in a light box is a hard proof
etc.





Understand that any viewing environment is going to be influenced by amient
light, regardless of the specific light source be it day light, or any type
of artificial lighting.



not to be over-complicated, but why would CIE come up with CIECAM97 and
CIECAM02 if they didn't think environmental factors influencing
appearance in a worthwhile workflow

Windows Vista did CIECAM(date?)

did you look up CIECAM02 in wikipedia?



What is your specific, or special purpose/interest for needing this specific
icc profile for a *light room* (not LR the app)?


managing appearance



It doesn’t sound as though you have any interest in color management for
photography post processing.



color is just a part of color appearance

there are other factors outside the realm of CIECAM that influence
appearance, like interimage ... one interimage factor involves
composition of the photo, another is user "look and feel" preference
other than accurate reproduction ... "look and feel" can be handled in
ICC "abstract" profiles

consumers prefer bluer blue skies than they really are, and greener
grass ... professional customers have their own preferences too




I think ICC considers CIECAM02


You think?


not an expert at it, should have displayed more confidence since I know
some of it


CIECAM02 is a color model.


it is a color "appearance" model



Perhaps looking at the entire Datacolor, and/or X-Rite Pantone sites might
provide some information regarding color management outside the realm of
photography. Some how I don’t believe that anything us photographers say is
going to satisfy you.

https://www.datacolor.com
https://www.xrite.com


I am familiar with a little more than the basics of
instrumental/absolute color management ...

the name of the product "Lightroom" reminded me of light boxes and
viewing environment setups used for soft/hard proofing in prepress ...
and film/paper design

for pro-sumers absolute color management might be a good enough
workflow, I was interested to see how relative color management ...
appearance models ... have progressed in the professional markets ....


--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #22  
Old July 31st 18, 03:06 PM posted to rec.photo.digital,sci.engr.color,sci.image.processing
nospam
external usenet poster
 
Posts: 24,165
Default ICC profile for a light box

In article , dale
wrote:

I am familiar with a little more than the basics of
instrumental/absolute color management ...


too bad you don't understand any of it.
  #23  
Old July 31st 18, 03:22 PM posted to rec.photo.digital,sci.engr.color,sci.image.processing
dale
external usenet poster
 
Posts: 187
Default ICC profile for a light box

On 7/31/2018 10:06 AM, nospam wrote:
In article , dale
wrote:

I am familiar with a little more than the basics of
instrumental/absolute color management ...


too bad you don't understand any of it.


at worst I'm not up to date

--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #24  
Old July 31st 18, 03:30 PM posted to rec.photo.digital,sci.engr.color,sci.image.processing
dale
external usenet poster
 
Posts: 187
Default ICC profile for a light box

On 7/31/2018 9:58 AM, dale wrote:
CIECAM02 is a color model.


it is a color "appearance" model


a model is not an application, I would apply CIECAM with an LMS profile
connection space, that way you could have viewing/appearance "relevant"
conditions in/out of LMS from XYZ, uvL, CIELAB, etc. then through an
"absolute" profiles to/from images in the viewing environments

--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #25  
Old July 31st 18, 03:46 PM posted to rec.photo.digital, sci.engr.color, sci.image.processing
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default ICC profile for a light box

On Jul 31, 2018, dale wrote
(in article ):

On 7/31/2018 9:58 AM, dale wrote:
CIECAM02 is a color model.


it is a color "appearance" model


a model is not an application, I would apply CIECAM with an LMS profile
connection space, that way you could have viewing/appearance "relevant"
conditions in/out of LMS from XYZ, uvL, CIELAB, etc. then through an
"absolute" profiles to/from images in the viewing environments


I am still curious as to your particular need for all this exploration into
profiles. I know that I maintain a color managed workflow starting with a
calibrated display, and camera/lens profiles. That gets extended into
printing where I use paper/printer specific icc profiles together with soft
proofing to get the best print results I can produce.

I still have no idea if you are a photographer struggling with a workflow, a
designer working with fabrics, an advertising exec, or somebody in the print
industry.

--

Regards,
Savageduck

  #26  
Old July 31st 18, 04:59 PM posted to rec.photo.digital,sci.engr.color,sci.image.processing
dale
external usenet poster
 
Posts: 187
Default ICC profile for a light box

On 7/31/2018 10:46 AM, Savageduck wrote:
On Jul 31, 2018, dale wrote
(in article ):

On 7/31/2018 9:58 AM, dale wrote:
CIECAM02 is a color model.

it is a color "appearance" model


a model is not an application, I would apply CIECAM with an LMS profile
connection space, that way you could have viewing/appearance "relevant"
conditions in/out of LMS from XYZ, uvL, CIELAB, etc. then through an
"absolute" profiles to/from images in the viewing environments


I am still curious as to your particular need for all this exploration into
profiles. I know that I maintain a color managed workflow starting with a
calibrated display, and camera/lens profiles. That gets extended into
printing where I use paper/printer specific icc profiles together with soft
proofing to get the best print results I can produce.

I still have no idea if you are a photographer struggling with a workflow, a
designer working with fabrics, an advertising exec, or somebody in the print
industry.


used to do development of these types of systems, over 20 years ago, and
now like to see where they are at, I keep up a resume just in case
something comes up, it is under "images" on the website in my signature

--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #27  
Old August 1st 18, 01:24 AM posted to rec.photo.digital,sci.engr.color,sci.image.processing
Eric Stevens
external usenet poster
 
Posts: 13,611
Default ICC profile for a light box

On Tue, 31 Jul 2018 06:01:58 -0700, Savageduck
wrote:

On Jul 31, 2018, dale wrote
(in article ):

On 7/30/2018 9:57 PM, nospam wrote:
In ,
wrote:

might be a nice feature for Lightroom ... compatible with some
measurement instruments ... and data like viewing angle, white point, etc.

lightroom has been fully colour managed since day one.


there is a difference between managing color and managing appearance,
look up CIECAM02 on wikipedia

viewing environment like a light room is one variable in appearance


What exactly do you believe is a *light room*?

Understand that any viewing environment is going to be influenced by amient
light, regardless of the specific light source be it day light, or any type
of artificial lighting.

What is your specific, or special purpose/interest for needing this specific
icc profile for a *light room* (not LR the app)?

It doesn’t sound as though you have any interest in color management for
photography post processing.


My impression is quite the contrary. Why else do you need color
management if it is to enable the management and control of the
appearance of the finished print? The process starts with the object,
continues through the camera, the processing in computer (which
includes the screen or monitor), on through the printer and paper and
surely (and this is the subject of the OP's original post) includes
the viewing environment.


I think ICC considers CIECAM02


You think?

CIECAM02 is a color model.

Perhaps looking at the entire Datacolor, and/or X-Rite Pantone sites might
provide some information regarding color management outside the realm of
photography. Some how I don’t believe that anything us photographers say is
going to satisfy you.

https://www.datacolor.com
https://www.xrite.com

--

Regards,

Eric Stevens
  #28  
Old August 1st 18, 01:28 AM posted to rec.photo.digital,sci.engr.color,sci.image.processing
Eric Stevens
external usenet poster
 
Posts: 13,611
Default ICC profile for a light box

On Mon, 30 Jul 2018 21:31:12 -0400, nospam
wrote:

In article , dale
wrote:


I was wondering if there is a software/instrument to make a profile for
a viewing environment like a light box.

there is.


does Adobe "Light Room" do it? A Light room is a viewing environment ...


lightroom (no space), and no.

you need a hardware puck and associated software.


Hmmm. You (and a few others) don't seem to know where the name
'Lightroom' came from.
--

Regards,

Eric Stevens
  #29  
Old August 1st 18, 01:35 AM posted to rec.photo.digital,sci.engr.color,sci.image.processing
dale
external usenet poster
 
Posts: 187
Default ICC profile for a light box

On 7/31/2018 11:59 AM, dale wrote:
I keep up a resume just in case something comes up, it is under "images"
on the website in my signature


just updated it to reflect some honors societies and certificate numbers ...

might change it again to reflect I have some computer systems and
programing I picked up along the way and I have used to date

--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #30  
Old August 1st 18, 01:59 AM posted to rec.photo.digital,sci.engr.color,sci.image.processing
nospam
external usenet poster
 
Posts: 24,165
Default ICC profile for a light box

In article , Eric Stevens
wrote:

I was wondering if there is a software/instrument to make a profile for
a viewing environment like a light box.

there is.


does Adobe "Light Room" do it? A Light room is a viewing environment ...


lightroom (no space), and no.

you need a hardware puck and associated software.


Hmmm. You (and a few others) don't seem to know where the name
'Lightroom' came from.


i know quite well where it came from.
 




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