Julien BLACHE wrote ... > > if it wasn't for the API, wouldn't be the backend the best place to know > > about a scanning device ICC profile ? > > AFAICT Oyranos works with a central repository of ICC profiles. > > So, no. > > JB.
m. allan noah wrote ... > That depends- just what is IN one of these profiles? How is it generated? > >allan Hi, Every imaging device has it's own personality. When one "sees" (255,0,0) the other may "see" (250,3,15) and so on. On top of that each user has their own preferences on calibration (brightness/gama/etc). So in order to scan the same image with different scanners and get the same result, an ICC profile has to be created that is unique for each scanner & settings. This profile is created by the user by scanning a known reference target and then using a program like lprof, or argyllcms[1]. In the profile lies a color transformation that maps the machine dependent color to a (universally) known reference color space known as the PCS (Profile Connection Space). Every installation of Oyranos comes with a few standard profiles. The user is responsible to add the profile for each local (input/output) device to the Oyranos database. So, Oyranos acts as a central repository of profiles, for that particular machine - each application using a device asks Oyranos for the relevant profile. I hope I'm answering your questions, if not, please let me know, Yiannis PS. I also made a change to the SANE diagram to be more correct http://orion.freehost.gr/current-sane-workflow but I'm not sure how to be that descriptive. [1] In other OSes, you will probably get icc profiles on a cd by the manufacturer, but these seem to be dependent on the manufacturer driver/software stack.
