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Author Topic: Software for making DNG profiles to match camera JPEGs?  (Read 2098 times)

bg2b

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Software for making DNG profiles to match camera JPEGs?
« on: July 20, 2011, 02:12:43 pm »

I have an old Olympus E-1 whose JPEG colors I really like.  I'd like to make some DNG profiles for my other cameras to get them to match the E-1  colors as closely as possible.  I have access to some color calibration targets that I could photograph with the E-1 (in JPEG) and with the other cameras (in RAW).  Is there any software (on a Mac, if that matters) which can produce an appropriate DNG profile from a RAW file and a "target" JPEG?
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digitaldog

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bg2b

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Re: Software for making DNG profiles to match camera JPEGs?
« Reply #2 on: July 20, 2011, 08:47:57 pm »

I have the profile editor, but unless I've missed something it seems to offer only two methods of making profiles:

1.  Manual tweaking, which seems rather slow, tedious, and error-prone.
2.  Matching the standard colors from a colorchecker.

I'm looking for something a bit like option 2, but where the user has the option to say what the reference colors are, or even better to just give a reference JPEG of the chart.
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digitaldog

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Re: Software for making DNG profiles to match camera JPEGs?
« Reply #3 on: July 20, 2011, 09:20:03 pm »

The product allows you to build you own custom profiles and edit them if you feel the need.
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bg2b

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Re: Software for making DNG profiles to match camera JPEGs?
« Reply #4 on: July 21, 2011, 09:10:13 am »

But as far as I can tell, it doesn't have a way to automatically produce profiles except for option #2 to match the standard colorchecker chart colors.  I don't want to manually tweak 100 color patches by eye to try to match the target camera JPEG.
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digitaldog

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Re: Software for making DNG profiles to match camera JPEGs?
« Reply #5 on: July 21, 2011, 09:32:35 am »

But as far as I can tell, it doesn't have a way to automatically produce profiles except for option #2 to match the standard colorchecker chart colors.  I don't want to manually tweak 100 color patches by eye to try to match the target camera JPEG.

I’m not clear on what you are trying to accomplish. You say you like a JPEG representation and want to match that with a DNG profile. That’s what the DNG profile editor is for. I don’t know what you refer to in terms of “manually tweak 100 color patches by eye”, there are only 24 on the Macbeth this product uses for creation and editing of DNG profiles.
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Rhossydd

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Re: Software for making DNG profiles to match camera JPEGs?
« Reply #6 on: July 21, 2011, 10:45:10 am »

Is there any software (on a Mac, if that matters) which can produce an appropriate DNG profile from a RAW file and a "target" JPEG?
I understand what you're trying to achieve here, but I don't think there's anything available that would do this easily* at the moment.
You're stuck with trying to pull and push individual points in the DNG profile editor to attempt to get a match.
I think Adobe expect people to want good accurate colour from their camera profiles, not trying to replicate other less faithful reproductions.

However I appreciate it could be an interesting concept that would allow people to get their RAW conversion software to emulate specific cameras/filmstocks/looks etc.

Paul


*It might be possible to rewrite/edit one of the ACR Calibrator scripts for Photoshop, but you'd need a good understanding of what you were trying to achieve and how to edit the javascript correctly.
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