Phoenix - A couple of questions

[Ivaylo Katev]

thanks jcolonnel!
well, you are asking here and i will answer here, we use a calibration table, the color profile provided by the vendor is not enough, because the light source and even the mirrors we use have measurable impact on the colors, so to use only camera color profile is not an option.

[joconnell]

I getcha - so a known source image / chart photographed by the scanner and then the difference made into a profile? I'm trying to get nicer results from my own dslr just for reference images and finding the usual macbeth matching profile isn't very good!

Sorry to go off topic!

[Ivaylo Katev]

the technical details are not very easy to be explained.
in general, the light spectrum acts like sensor modifier, this makes not possible to correct perfectly the colors by simple tint or even by linear transform, you need a lookup table and interpolation between the nearest entries.

[joconnell]

Much appreciated Ivaylo.

[stevesideas]

Thanks for showing the setup. Seems to work well for distant waves but near ones don't seem to have foam. Is this intentional ?

[Ivaylo Katev]

well, you can observe similar effect on the sky, the horizon and almost the entire sky is full of clouds, but just above your head is permanently empty
this is false feeling for "lucky" coincidence, actually the entire sky is uniformly filled with clouds, but our senses are not perfect. select one foam piece and move the camera near to it, you will see that it will not disappear.