Re: camera colour space
Re: camera colour space
- Subject: Re: camera colour space
- From: Steve Miller <email@hidden>
- Date: Thu, 06 Mar 2008 15:40:06 -0600
- Thread-topic: camera colour space
Did you mean to say Canon 1D?
If so, that camera will capture in camera raw.
On 3/6/08 2:03 PM, "email@hidden"
<email@hidden> wrote:
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> Today's Topics:
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> 1. camera colour spaces (info)
> 2. Re: camera colour space (Nov06)
> 3. Re: camera colour spaces (Andrew Rodney)
> 4. Re: camera colour spaces (Phil Green)
> 5. Re: camera colour spaces (email@hidden)
> 6. Re: camera colour spaces (Richard Frederickson)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 5 Mar 2008 20:53:33 -0500
> From: "info" <email@hidden>
> Subject: camera colour spaces
> To: <email@hidden>
> Message-ID: <001a01c87f2c$e5e50820$6501a8c0@mind>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello,
>
>
>
> I am curious about how semi professional cameras manage the "colour space "
> configuration which it imposes on operator's using jpeg format. A student
> has asked me to look at her Canon D1 which offers five matrix colour settings
> which produce five different colour interpretations all in sRGB . I shot a
> Gretag colorchecker using each matrix setting and the results showed all five
> files had different data. I am trying to discover whether these files have
> been converted through five different generic input profiles ( or perhaps
> five different custom rendering intents from a single profile) into srgb, or
> whether alterations were made to the electronic control signals before
> conversion and srgb was simply assigned afterwards. In the latter case she
> would be able to make her own profile which would most likely be larger than
> srgb. This would allow her to convert her file to a larger work space than
> srgb and therefore maintain the full spectral sensitivity of her camera.
>
>
>
> Does anyone know if these cameras actually have built in CMMs and perform
> in-house colour conversions or are these colour alternatives made before the
> data is even created?
>
>
>
> Thanks for any input
>
>
>
> Paul Lowry
>
>
>
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 6 Mar 2008 04:22:37 +0100
> From: Nov06 <email@hidden>
> Subject: Re: camera colour space
> To: ColorSync Mailing List <email@hidden>
> Message-ID: <email@hidden>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
> To throw something into the discussion, I'd say that most sensors are
> capable of 'registering' a very wide gamut, it is just that the purer
> the colours the sensors will loose in resolution (and probably
> increase in noise). Maybe I am wrong, but isn't a display calibrator
> also just a sensor?
>
> What gamut you create out of the raw data, is just a choice that
> balances accuracy with 'spectral' resolution and overall pleasing
> colours.
>
> Just my improvised understanding.
>
> Markus
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 06 Mar 2008 07:11:44 -0700
> From: Andrew Rodney <email@hidden>
> Subject: Re: camera colour spaces
> To: info <email@hidden>, <email@hidden>
> Message-ID: <C3F549B0.52252%email@hidden>
> Content-Type: text/plain; charset="US-ASCII"
>
> On 3/5/08 6:53 PM, "info" wrote:
>
>> I am curious about how semi professional cameras manage the "colour space "
>> configuration which it imposes on operator's using jpeg format.
>
> When the ICC gets their pages up to speed, this might be a good first read:
>
> http://www.color.org/icc_white_paper_20_digital_photography_color_management
> _basics.pdf
>
> It was up recently.
>
> Andrew Rodney
> http://www.digitaldog.net/
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 06 Mar 2008 14:24:40 +0000
> From: Phil Green <email@hidden>
> Subject: Re: camera colour spaces
> To: Andrew Rodney <email@hidden>
> Cc: info <email@hidden>, email@hidden
> Message-ID: <email@hidden>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Links to all the ICC White Papers are available on the ICC White Papers
> page http://www.color.org/whitepapers.html
>
>
> Andrew Rodney wrote:
>> On 3/5/08 6:53 PM, "info" wrote:
>>
>>> I am curious about how semi professional cameras manage the "colour space "
>>> configuration which it imposes on operator's using jpeg format.
>>
>> When the ICC gets their pages up to speed, this might be a good first read:
>>
>> http://www.color.org/icc_white_paper_20_digital_photography_color_management
>> _basics.pdf
>>
>> It was up recently.
>>
>> Andrew Rodney
>> http://www.digitaldog.net/
>
>
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