On Saturday 04 March 2006 10:34 am, Bjorn Helgaas wrote: > On Saturday 04 March 2006 07:48, Cory Papenfuss wrote: > > I got off on the monitor profiling tangent a bit this morning, and > > as far as I can tell, nobody gives a crap about linux-land monitor > > colorimetry. Argyll allegedly supports two devices, but they're both old > > and expensive. Ran across this idea: > > > > http://wiki.scribus.net/index.php/Proposal_for_Monitor_Profiling > > > > Basically, it assumes that one can generate an accurate color > > profile for a digital camera, and then turn around and use it as a > > colorimeter to profile your monitor. > > Very interesting idea; thanks for the pointer. > > I'd love to work on an open-source driver for a ColorVision > Spyder or similar device, but I haven't been able to get hold > of a spec. It probably wouldn't be too hard to reverse- > engineer the protocol, but I'm not willing to do that part. >
Bjorn, The problem is that it is not that simple. Much of the functionality of these devices is implemented in software. So it needs much more than understanding the devices hardware protocol. GretagMacbeth has Linux drivers/libraries for their EyeOne devices but these have never been made available to anyone under conditions that would allow their use in applications like LPROF or ArgyllCMS. In addition, they require that a restrictive statement be placed in any released source code that uses these drivers/libraries that would make that source code incompatible with any open source license such GPL. This, of course, is a deal breaker for anyone who wants to use these devices on an OSS platform like Linux, NetBSD or FreeBSD since it precludes the wide spread distribution of any application that uses these drivers/libraries. Avantes at one point had linux drivers for their AvaMouse product but they only ever made it available for x86 architectures which made it of limited usefullness. And they only allowed those who registered for the Linux SDK to have access to it which was another significant problem. They removed all access to it about 6 months ago. At the time is was removed it had not been maintained for several years. Their timing of course was flawed as they withdrew the drivers right at the time when the Linux market for these devices was about to start developing. Hal ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
