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gimp and CMS



 
 
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  #1  
Old October 27th 14, 07:22 PM posted to sci.engr.color,sci.image.processing,comp.graphics.apps.gimp,rec.photo.digital,rec.photo.darkroom
Dale[_2_]
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Posts: 137
Default gimp and CMS

I'm using Gimp on Ubuntu

I have the color management turned on and have it configured to convert
to the Adobe 98RGB working space if a profile is embedded in the image
file, I have chosen an approximation for my monitor profile
(edit/preferences/color management)

but (file/new/advanced) does not include an option for a profile, just
RGB or grey scale

I will search for some images either in Adobe 98RGB or with some
embedded profiles, and standard datas (I see some B%W film data out
there http://registry.gimp.org/node/27897 )

shouldn't gimp allow for the file/new cube to be mapped to a working
space gamut, RGB or otherwise? I realize my choice of monitor
approximation may override any end goal, but I am just hacking with Yuv,
generic/convolution and grey scale in curves to get at UCR/GCR/UCA and
whatever else may come of it



--
Dale (contact below)
http://www.dalekelly.org/
  #2  
Old October 27th 14, 07:30 PM posted to sci.engr.color,sci.image.processing,comp.graphics.apps.gimp,rec.photo.digital,rec.photo.darkroom
Dale[_2_]
external usenet poster
 
Posts: 137
Default gimp and CMS

On 10/27/2014 03:22 PM, Dale wrote:
hacking with Yuv


using this plug-in for gimp
http://registry.gimp.org/node/9848

the matrices are easily edited

--
Dale
http://www.dalekelly.org/
  #3  
Old October 27th 14, 10:00 PM posted to sci.engr.color,sci.image.processing,comp.graphics.apps.gimp,rec.photo.digital,rec.photo.darkroom
John K. Herreshoff
external usenet poster
 
Posts: 3
Default gimp and CMS

Dale wrote:

I'm using Gimp on Ubuntu

I have the color management turned on and have it configured to convert
to the Adobe 98RGB working space if a profile is embedded in the image
file, I have chosen an approximation for my monitor profile
(edit/preferences/color management)

but (file/new/advanced) does not include an option for a profile, just
RGB or grey scale

I will search for some images either in Adobe 98RGB or with some
embedded profiles, and standard datas (I see some B%W film data out
there http://registry.gimp.org/node/27897 )

shouldn't gimp allow for the file/new cube to be mapped to a working
space gamut, RGB or otherwise? I realize my choice of monitor
approximation may override any end goal, but I am just hacking with Yuv,
generic/convolution and grey scale in curves to get at UCR/GCR/UCA and
whatever else may come of it




ask over on IRC at #gimp.

John.

--
Using the Cubic at home
  #4  
Old October 28th 14, 11:45 PM posted to sci.engr.color,sci.image.processing,comp.graphics.apps.gimp,rec.photo.digital,rec.photo.darkroom
Dale[_2_]
external usenet poster
 
Posts: 137
Default gimp and CMS

On 10/27/2014 03:22 PM, Dale wrote:
I'm using Gimp on Ubuntu


looks like any moves in uvL, h*s*L*, etc. that I wanted to code in gimp
can be handled under the Colors/Map routines, Alien Map is very good in
HSL model with available frequency and phase shifts on selectable HSL
channels

I don't have a color or spectrum measurement device for my monitor or
printer and I don't know the price/quality ranges, I don't even have my
printer attached

I might still hack at the color stuff and fourier and laplace stuff I am
interested in for something to do, and likely to spend more time
learning gimp and what plug-ins are already registered

anyone know how to populate a palette to use with the Color/Map/Palette
map filter? might be easier to map palettes with filters than just
making filters

--
Dale (contact below)
http://www.dalekelly.org/
 




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