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Author Topic: Different profiles in LR and C1  (Read 652 times)
ErikKaffehr
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« on: May 09, 2013, 01:15:22 AM »
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Hi,

Below is a sample of the same image processed in C1 and LR4 with different profiles. The profiles for LR4 are:

Adobe Standard
Camera Landscape
Color Checker Passport (same light)
DNG Profile Editor (same light)

The significance of profiles may be considered when discussing color rendition between cameras.

The images are shown as animated GIF, certainly not optimum for colors, but it should give some idea of the differences. A PDF of the same images is here: http://echophoto.dnsalias.net/ekr/Articles/Color_profiles/Movie/ColorProfiles.pdf




Best regards
Erik
« Last Edit: May 09, 2013, 01:27:18 AM by ErikKaffehr » Logged

ErikKaffehr
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« Reply #1 on: May 09, 2013, 01:26:48 AM »
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Below are: Adobe Standard, DNG Profile Editor and Color Checker Passport:


Finally, LR4 (Adobe Standard) and Capture 1

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bill t.
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« Reply #2 on: May 09, 2013, 01:44:21 AM »
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I like the Colorchecker version, and I carry one of those around in my bag for occasional use in bizarre lighting.

Does C1 allow custom camera profiles?  The ETTR-like bias we see here would tend to lead to the dreaded Dark Print Syndrome.
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BartvanderWolf
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« Reply #3 on: May 09, 2013, 03:57:58 AM »
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Does C1 allow custom camera profiles?  The ETTR-like bias we see here would tend to lead to the dreaded Dark Print Syndrome.

Hi Bill,

C1 does allow custom camera profiles, but created in a different way than with a simple colorchecker. They are real ICC profiles, and require a rigorous profile creation effort. On the other hand, one can easily tweak the existing default camera profile(s) for one's camera model, and save that tuned version as a new custom ICC profile.

Cheers,
Bart
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samueljohnchia
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« Reply #4 on: May 09, 2013, 05:25:51 AM »
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Hi Erik,

Was the X-rite Passport ColorChecker profile version custom white balanced? Is it not using the same white balance settings as the Adobe Standard and Adobe DNG PE versions?
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ErikKaffehr
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« Reply #5 on: May 09, 2013, 06:22:38 AM »
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Hi,

The way this was done was that white balance was made from another exposure using a color checker card. Same color temperature and tint was used for all shots. I just flipped between different color profiles after setting WB and exposure.

Regarding C1 I just included because I guessed it would be different. Used same exposure correction, color temperature and tint as on the others.

It would be smarter to include the CC in the exposure.

Thanks for your questions/suggestions.

Best regards
Erik


Hi Erik,

Was the X-rite Passport ColorChecker profile version custom white balanced? Is it not using the same white balance settings as the Adobe Standard and Adobe DNG PE versions?
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Mark D Segal
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« Reply #6 on: May 09, 2013, 06:38:39 AM »
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Interesting comparisons, and of course one shouldn't be surprised that different profiles produce different outcomes - especially between vendors the "base case" or "default" profiles will differ, again producing different results. As I've never yet processed a raw image that didn't need colour and luminosity adjustments, the more interesting issues for me are "which provides the better starting point",  and "what are the criteria for defining a better starting point"? In addressing those questions, I would begin by casting aside any notion of scene-referred "colour accuracy" for anything but photographs made under very controlled conditions to reproduce known and required colour values.
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Mark D Segal (formerly MarkDS)
Author: "Scanning Workflows with SilverFast 8....." http://www.luminous-landscape.com/reviews/film/scanning_workflows_with_silverfast_8.shtml
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