[Openicc] [Gimp-print-devel] [Printing-architecture] Colour

[Michael Sweet]

On Nov 16, 2009, at 12:14 AM, edmund ronald wrote:
>> As for printing "untagged" images from the Preview application, you can't -
>> Preview does not support this use case, and probably never will.
>> ___________________________________________________
>> Michael Sweet, Senior Printing System Engineer
> 
> Why not? It can do softproofing, so why shouldn't it do target printing?

Because target printing is only done by a very small subset of the Mac OS X user community?

In any case, untagged images get pseudo-tagged with GenericGray/RGB/CMYK when printed, so if your printer driver uses these colorspaces for vendor matching mode (which turns out is most HP, Canon, and Epson inkjets) then you can print RGB target images without extra conversions beyond what the driver does...  The same trick can be done with PostScript printers by selecting one of the Generic color profiles from the Color Matching pane.

(and yes, this is the null-transform path that many have complained about that Photoshop and friends are supposed to turn on automatically...)

___________________________________________________
Michael Sweet, Senior Printing System Engineer