quartz is color managed—all rasters are tagged: when you import an untagged jpeg, srgb is assigned [a likely/logical candidate to characterize an untagged jpeg]. if your app is color managed [is it?] you should present similar options to what you see when you reopen the file in photoshop [allow the user to assign or convert], otherwise you can just run with it. however note: if you emit the image in a quartz pdf stream it retains the srgb profile, which is not necessarily what you want, i.e. the image is no longer unmanaged.
has anyone discovered a way to emit an unmanaged/untagged image from a quartz pdf context? On Mar 23, 2014, at 2:14 PM, Leonardo <mac.iphone....@gmail.com> wrote: > I create a jpg RGB image with Photoshop "without" any icc profile. > I import it in my app. > > NSBitmapImageRep *srcRep = [NSBitmapImageRep imageRepWithData:imageData]; > NSLog(@"profileName %@", srcRep.colorSpace.localizedName); > > On OS X 10.8.5 I properly get "Device RGB". > On Mavericks 10.9.2 I wrongly get "sRGB IEC61966-2.1". > > Therefore I can't understand whether the image: > 1. has no profile then I have to assign a profile chosen by my user. > 2. has its own profile then I do not touch it. > > I even tried CGColorSpaceCopyName. Same result. > Did Apple changed its mind on Mavericks giving a profile to all the orphans, > or am I missing some step? > > > Regards > -- Leonardo > > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/etaffel%40me.com > > This email sent to etaf...@me.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
