[argyllcms] Re: Camera calibration: LUT only as good as matrix?
- From: Iliah Borg <iliah.i.borg@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 4 Jul 2013 17:40:59 -0400
On Jul 4, 2013, at 5:23 PM, Gerhard Fuernkranz wrote:
> Am 04.07.2013 22:29, schrieb Iliah Borg:
>> On Jul 4, 2013, at 4:24 PM, Gerhard Fuernkranz wrote:
>>
>>> Am 04.07.2013 16:03, schrieb Iliah Borg:
>>>>> if the camera actually *was* perfectly linear, especially if it also met
>>>>> Luther-Ives
>>>> In the presence of noise L-I condition can't be met.
>>> Sorry, what has L-I condition to do with noise?
>> A sensor can't follow L-I condition because of noise.
>
> OK, I think got it now what you actually want to say:
>
> Manufacturers intentionally do not build sensors which fulfill the L-I
> condition, because such sensors would be more noisy.
>
> Is this what you mean?
To certain extent, yes. But given the existing shadow noise and shot noise, L-I
condition can't be met in reality, too.
--
Best regards,
Iliah Borg
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