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method for ICC profile of Digital Camera



 
 
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Old March 16th 14, 11:47 AM posted to sci.engr.color,sci.image.processing,rec.photo.darkroom,rec.photo.digital,comp.soft-sys.matlab
Dale[_4_]
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Posts: 131
Default method for ICC profile of Digital Camera

I have read on the ICC website that color management has not taken hold
in digital yet

but to characterize a digital camera you need white point (illuminant) data

right now the choices are to make an assumption of white point from
scene data, or use the RAW image, both might be "good enough"
approaches, both might need editing

but if you had a inexpensive spectroradiometer onsite, you could
combine that spectral data with the contrast of the sensor and the
spectral distribution of the sensor filtration and make a profile
mechanistically

if your color management system allowed for that approach, and the
spectroradiometer fit the price point of your market

probably doesn't have to be perfect spectroradiometry in some
applications since illuminance standards have some assumptions

and you don't need the data if you know the spectral data of your
lighting in this approach

same kind of thing if you want to unbuild a negative back to the scene
rather than intend it to printing densities for an optical print, lots
of medium data needed for the first approach, and that data would
probably reduce editing in print intentions too

--
Dale
 




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