Re: Color Management for iPad?
Re: Color Management for iPad?
- Subject: Re: Color Management for iPad?
- From: Jan-Peter Homann <email@hidden>
- Date: Sat, 30 Jul 2011 12:05:23 +0200
Hello to all,
I´m definetly not the most knowledgable person about this in this list,
because I´m not a developer !!
But I share the knowledge I have with the people of this list.
So far as I know, shares iOS, the operating system for iPhone, iPod and
iPad some core technologies with Mac OS X. This includes parts of Core
Graphics and the Quartz 2D Imaging model including dealing with
ICC-profiles for Gray, RGB and CMYK and rendering Intents.
http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CGColorSpace/Reference/reference.html#//apple_ref/doc/uid/TP30000949
<http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CGColorSpace/Reference/reference.html#//apple_ref/doc/uid/TP30000949>
For detailed technical discussions, Apple offers following mailinglists
for developers:
http://lists.apple.com/mailman/listinfo/quartz-dev (about programming
and quartz in general)
http://lists.apple.com/mailman/listinfo/colorsync-dev (about programming
and colorsync)
What I have not found through a simple web research, is any information,
how the display colors are characterized/ profiled in iOS4.
I still don´t know:
- does iOS 4 provides a color characterization / profile for the display ?
- If yes, is this an ICC-profile or an internal format because of speed
optimization ?
- if yes, is there any documentation about it ?
- if yes, is this hardcoded, or can a developer change the display color
characterization / profile ?
If any one would ask this questions in one of the mentioned mailinglists.
Best regards
Jan-Peter
Am 30.07.11 11:00, schrieb edmund ronald:
Jan-Peter,
Maybe you can educate us further, as you seem to be the most
knowledgable person here ?
Edmund
On Sat, Jul 30, 2011 at 10:39 AM, Jan-Peter Homann
<email@hidden <mailto:email@hidden>> wrote:
Hello,
iOS4 supports ICC based colormanagement, see also here:
http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CGColorSpace/Reference/reference.html#//apple_ref/doc/uid/TP30000949
<http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CGColorSpace/Reference/reference.html#//apple_ref/doc/uid/TP30000949>
it took me 2 minutes to find this document through Google. May be
we should do a little bit more research, before we are doing
statements about iPad and color management in this list.
regards
Jan-Peter
Am 30.07.11 09:02, schrieb edmund ronald:
I think there is already a profile etc in there somewhere. It
shouldn't be
hard to color manage a jailbroken device, the problem is that
the color
management interface is not available *yet* on locked-down
devices.
Edmund
On Fri, Jul 29, 2011 at 11:58 PM, Roger
Breton<email@hidden <mailto:email@hidden>> wrote:
Does not seem like a "system" solution?
iPad. Another example of color management as an after
thought...
Roger
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