Re: Camera profiling with ICC et al
Re: Camera profiling with ICC et al
- Subject: Re: Camera profiling with ICC et al
- From: "edmund ronald" <email@hidden>
- Date: Tue, 16 Sep 2008 21:24:16 +0200
Can't someone dig out the original colorchecker paper ?
Edmund
On Tue, Sep 16, 2008 at 8:38 PM, Lars Borg <email@hidden> wrote:
> Hi Eric,
>
> So maybe there are only 6 pigments in CC24??
> That would be disappointing
>
> Lars
>
> At 10:56 PM -0400 9/15/08, <email@hidden> wrote:
>>
>> Eric,
>>
>> Actually the first 6 principal components account for nearly all the
>> variation, so the 24 patches are highly correlated. And despite claims to
>> the
>> contrary, there is no way that a reflective target, no matter how well
>> designed can
>> reproduce the complex interreflections, translucence, and other
>> non-reflective
>> effects that make up most of the scenes we wish to reproduce. Colorants
>> behave
>> very differently spectrally depending on the mode of illumination.
>>
>> The other Eric
>> Eric Walowit
>> Tahoe
>>
>> In a message dated 9/15/08 7:09:13 PM,
>> email@hidden writes:
>>
>>
>>> most of the patches on the CC 24 are linearly independent, which is not
>>> true of the larger targets. (This can be verified by doing an
>>> appropriate
>>> decomposition of the spectral data.)
>>>
>>>
>>
>>
>>
>>
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