Export Tiff in linear

NN635489859066153676UL

• October 15, 2014 16:19

Hi,
I am trying to export my picture in linear space.

I set "Base Characteristic --> Curve" to Linear Response
and I export Tiff image but the exported image doesn't look
linear, it looks that has still a gamma curve in.

Any helps?

Thanks
g

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  dee jjjaaaa

  • October 17, 2014 04:20

  if you just want technically your tiff to have a profile embedded that has linear gamma (g1) then just create such icc profile yourself (you can modify some existig icc profile, like AdobeRGB) and use it in process recipe -> ICC profile... unless you have some other goals in mind (like using input camera profile = no color correction, etc)

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  Andrew Mumford

  • October 17, 2014 04:54

  Actually I think gamma -0.45 in the Levels tool will get you there or at least closer.
  
  It's my understanding "Linear Response still has Viewing / Screen Gamma still somewhere in the chain since View > Proof Profile > No Profile clearly doesn't "darken" the image as you might expect for a true Linear Light workflow.

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  dee jjjaaaa

  • October 17, 2014 05:22

  [quote="Andrew902" wrote:
  Actually I think gamma -0.45 in the Levels tool will get you there or at least closer.
  
  It's my understanding "Linear Response still has Viewing / Screen Gamma still somewhere in the chain since View > Proof Profile > No Profile clearly doesn't "darken" the image as you might expect for a true Linear Light workflow.

  
  for as long as you are using standard P1 camera profiles (for specific cameras) you do apply non linear operations (LUTs) in color transform (from camera's RGB into whatever C1 is using as a working color space)... so nothing will correct that inside C1 UI (no film curves, no sliders) - for as long as you do not correct the situation with the part of color transform guided by "camera profile".

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  NN635489859066153676UL

  • October 17, 2014 10:29

  [quote="deejjjaaaa" wrote:
  if you just want technically your tiff to have a profile embedded that has linear gamma (g1) then just create such icc profile yourself (you can modify some existig icc profile, like AdobeRGB) and use it in process recipe -> ICC profile... unless you have some other goals in mind (like using input camera profile = no color correction, etc)

  
  
  Thanks,
  with custom(g1) ICC profile it does the job.

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