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Author Topic: ColorChecker Digital SG (or Better) for Camera Profiling  (Read 3069 times)

Rhossydd

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Re: ColorChecker Digital SG (or Better) for Camera Profiling
« Reply #20 on: May 04, 2017, 03:15:41 AM »

Maybe CoCa is of interest,
The OP is asking for dnp profile for Lightroom/ACR, so Coca might not be much help.
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Brad P

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Re: ColorChecker Digital SG (or Better) for Camera Profiling
« Reply #21 on: May 07, 2017, 08:28:48 PM »

Thanks for everybody's thoughts. Since I'm on a Mac, It looks like basiCColor is my only prepackaged commercial solution for easy to use software profiling better than Xrite's Colorchecker Passport.  CoCa and PictoColor inCamera (the one I found earlier) seem to require Windows and/or older versions of Photoshop in the latter case than I have retained.  DCamProf is coming out with a GUI I read on that post in a month or so, so that may well be an option too. 
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torger

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Re: ColorChecker Digital SG (or Better) for Camera Profiling
« Reply #22 on: May 23, 2017, 06:12:52 AM »

DCamProf is coming out with a GUI I read on that post in a month or so, so that may well be an option too.

Yep, it's out now known as "Lumariver Profile Designer" and has built-in support for ColorChecker SG, including using the white patches for automatic flat-field correction:

Presentation here: http://www.lumariver.com/#LumariverPD

You can make single or dual-illuminant DNG profiles (DCP), or ICC profiles, including those with special curve encoding like Capture One has.

Do note though that as the CCSG is a semi-glossy target it's difficult to shoot without glare issues. I'd say that studio conditions with a careful lighting setup is almost required. One could try the trick described here to make an outdoor shot with a glossy target: http://www.ludd.ltu.se/~torger/photography/camera-profiling.html#step3_outdoor
but I would myself go for an indoor setup whenever possible. That said I haven't actually tried shooting the CCSG in such a black-cloth-on-cardboard box setup, maybe it works out really well, it would be interesting to try out sometime.

If you're making a general-purpose profile rather than a reproduction (copy artwork etc) I think a target like the ColorChecker Passport is just fine. The quality of a general purpose profile is less about precise color matching of high saturation colors and more about tone reproduction. It doesn't hurt to use a CCSG though, assuming that you make a good target shot with minimized glare.
« Last Edit: May 23, 2017, 06:16:03 AM by torger »
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