Re: ColorSync inconsistency in iPhoto
Re: ColorSync inconsistency in iPhoto
- Subject: Re: ColorSync inconsistency in iPhoto
- From: David Emerick <email@hidden>
- Date: Fri, 11 Feb 2005 12:17:49 -0500
Okay. Now I am getting a little worried. I have been using iPhoto for many
years now as an image management tool. I never do anything within iPhoto
except organizing folders of images; and have iPhoto set to open images in
PS. I then have PS convert the images to Adobe RGB 1998 and I never save
back the images to iPhoto, instead saving them to folders of "artwork" on a
FW drive. In other words I use iPhoto as a method to download from camera
and keep a master file. Am I corrupting color space in some way?
D A V I D E M E R I C K
Digital Media Specialist
St. Mary's College of Maryland
18952 East Fisher Road
St. Mary's City, Maryland 20686
240 . 895 . 2034
email@hidden
http://www.smcm.edu/~dnemerick
> From: Chris Murphy <email@hidden>
> Date: Fri, 11 Feb 2005 09:44:08 -0700
> To: Pete Carter <email@hidden>
> Cc: "email@hidden" <email@hidden>
> Subject: Re: ColorSync inconsistency in iPhoto
>
>
> On Feb 11, 2005, at 2:03 AM, Pete Carter wrote:
>
>> In ColorSync Utility if I set RGB Default to Adobe RGB, it
>> States clearly and specifically.... use this panel to specify default
>> profiles for each color space to be used when a document does not
>> contain
>> embedded profiles.
>
> It has done so, and lied, since 10.0. Apps must be specifically written
> to use these settings, and only a handful do. Apple's don't.
>
>> And then I open an untagged image in Preview and then save, it ignores
>> the
>> above and still the image remains without embedded profile. Same with
>> iPhoto. To what extent and which app then does this feature in the CS
>> Util
>> have any effect? Id love to know.
>
> Some scanner and digital camera packages look for those settings, and
> Adobe applications, when you specifically set them to use those
> settings.
>
> Preview is a fundamentally broken application when it comes to color
> management. It also converts images without warning when there is an
> embedded profile. It assumes Monitor RGB as source. When you export
> files, depending on the format, they will get either no profile,
> Generic RGB, or sRGB embedded. It's really a train wreck of an
> application - from a managed color point of view.
>
>
>>> 2. Editing images (conversion from embedded source to Generic RGB as
>>> destination, retagging with Generic RGB).
>>
>> This is what Im getting in iPhoto. Its dangerous! And no warning
>> too..thats
>> the best bit.
>
> A warning would confuse the target end user: the one who doesn't know
> anything about color management, and probably doesn't want to know. You
> are too sophisticated of a user for this application. And what sucks is
> that the app is so frigging cool that it is appealing to prosumer and
> professional users. But if they use it, there is a good chance they're
> going to get bit.
>
>> Its such a shame to have a feature like this that ends up being near
>> useless
>> Youd think it would be such an easy thing to do incorporating a few
>> more
>> controls in iPhoto so you could print converting to destination
>> profiles and
>> being able to choose rendering intent. Even having an expert controls
>> box so
>> not to frighten some folk.
>
> Color management doesn't have to be complex to work correctly, and it
> certainly doesn't have to act stupid to be useful for experts and
> non-experts alike.
>
>
> Chris Murphy
> Color Remedies (TM)
> www.colorremedies.com/realworldcolor
> -------------------------------------------------------------
> Co-author "Real World Color Management, 2nd Edition"
> Published by PeachPit Press (ISBN 0-321-26722-2)
>
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