Re: RPP raw photo processor 64
Re: RPP raw photo processor 64
- Subject: Re: RPP raw photo processor 64
- From: Thomas Lianza <email@hidden>
- Date: Mon, 03 Jun 2013 14:25:18 +0000
- Thread-topic: RPP raw photo processor 64
If the ICC is a club for the printing industry, it is simply because the
representative companies that come from the printing industry actually
take part in the process. Note that we have representation from all the
major camera companies with the exception of Leica. There has been no
ground swell of support for enhanced camera profiling nor have there been
any discussion of new output referred spaces. The Japanese members are
working on professional RGB workflows that target JapanColor
characteristics.
Your assertion that innovation will come from Hollywood is simply not
correct. Open EXR has been around for years basically untouched and
supported only in limited situations. It is used in many special effects
workflows. Open EXR doesn't do anything on the camera side other than
insist the camera is properly profiled. OpenEXR is essentially a
programming language. The ACES color system is just passing into a form
that can get into standards. ACES has a set of rather complex transforms
that include an IDT (input device transform) which essentially makes the
camera a pseudo colorimeter, but just like the ICC, there are many
opinions about how go from scene referred to ACES color space and they
differ among manufacturers of the hardware. On the output side, there are
three predominate output spaces: Theater Projection, Render to film, and
Rec.709.
There is some interesting hardware being sold for camera calibration, but
it is so expensive as to exclude the common photographer. As I have said
for years, the problem with camera profiling has more to do with the
interaction of the colored medium with the specific light source than the
camera itself. DaVinci's first axiom: The color of an object is affected
by the color of the light that illuminates the object. His second axiom:
The color of an object is affected by the color of the light reflecting
off other nearby objects.
It's not clear how any of this discussion has anything to do with the ICC.
Regards,
Tom
On 6/3/13 9:29 AM, "edmund ronald" <email@hidden> wrote:
>The ICC has become a club for the printing industry, they are not
>interested in displays except for proofing, not interested in cameras, and
>not interested in consumers. I am afraid that any innovation will have to
>come from Hollywood.
>
>Edmund
>
>
>
>On Mon, Jun 3, 2013 at 2:23 PM, Wayne Bretl <email@hidden>
>wrote:
>
>> I have been following the discussion with fascination, and learning what
>> software techniques are available.
>>
>> However, accuracy can go only so far in the case of three-channel
>>sensors,
>> and an accurate starting process may not be able to mimic a particular
>>film
>> or sensor if the sensor in use doesn't match that.
>>
>> An example: two sensors, one with deeper near infrared sensitivity than
>>the
>> other, plus two black objects, one with near infrared reflectivity
>>greater
>> than the other.
>>
>> No profiling of the sensor with low infrared sensitivity will make it
>> distinguish these two objects the way the sensor with infrared
>>sensitivity
>> will. If the sensor is blind to something, profiling cannot make it see
>> that.
>>
>> The same principal applies to sensing of highly saturated colors by
>>sensors
>> with narrow bandwidths (like most film). They reach 100% sensor
>>saturation
>> at a point where the eye does not, and are blind to further increases in
>> the
>> subject saturation.
>>
>> Great discussion, guys - keep on!
>>
>> -----Original Message-----
>> From: colorsync-users-bounces+waynebretl=email@hidden
>> [mailto:colorsync-users-bounces+waynebretl=email@hidden]
>>On
>> Behalf Of Graeme Gill
>> Sent: Monday, June 03, 2013 6:31 AM
>> To: ColorSync
>> Subject: Re: RPP raw photo processor 64
>>
>> Iliah Borg wrote:
>>
>> > It is a little bit complicated for high dynamic range scenes with
>> > light sources (L>100) because of flare; and that flare is not very
>> predictable.
>>
>> How is that different from flare in any optical capture system (ie. the
>> eye,
>> a film camera, etc. etc.) ?
>>
>> But regardless of whether the aim is to capture HDR, something like
>>OpenEXR
>> is a format that seems suitable for storing scene image information in a
>> form that is not output referred, has a firm technical foundation, is
>>not
>> proprietary, and has a bunch of software around it.
>>
>> Graeme Gill.
>> _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Colorsync-users mailing list (email@hidden)
>> Help/Unsubscribe/Update your Subscription:
>>
>>
>>ast
>> .net
>>
>> This email sent to email@hidden
>>
>> _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Colorsync-users mailing list (email@hidden)
>> Help/Unsubscribe/Update your Subscription:
>>
>>
>>ail.com
>>
>> This email sent to email@hidden
>>
> _______________________________________________
>Do not post admin requests to the list. They will be ignored.
>Colorsync-users mailing list (email@hidden)
>Help/Unsubscribe/Update your Subscription:
>m
>
>This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden