Hendrik Helwich wrote: >> <http://www.imaging.org/IST/store/epub.cfm?abstrid=43659> > > No - thank you for the hint. This sounds very promising. But i do not > want to pay for this PDF without knowing if i could use the content. It > would be nicer if he would share his findings with the community like > others do ;-) > But if somebody has a copy of it i would be glad if i could get it. Hi, it's pretty reasonably priced as far as research articles go ($12), and publishing in a journal in the technical area _is_ sharing it with the community. [There are a lot less accessible journals in this area - go look at the subscription rates to Wiley's "Color research and application" for instance. It will make your eyes water...] > And get the following output for a white color: >> Result is XYZ: 132.247557 139.842979 120.663127, D50 Lab: 113.719384 > -3.601868 -3.378244 > Are these XYZ values in a relative or absolute form? By default they are absolute. You can choose various relative versions in spotread :- ie. for relative to the display white, use -dw, and you then have to calibrate it against the white before taking measurements.] >> spotread: Error - tcgetattr failed with 'Invalid argument' on stdin > I assume its not possible to use spotread without a shell and to tell it > to read its input from a stream instead? I think it is possible, but you need to set the ARGYLL_NOT_INTERACTIVE environment variable. See <http://www.argyllcms.com/doc/Environment.html> Cheers, Graeme Gill.