my bad, "y" is green and "x" is red......stupid me :) BTW, could you make the calibration window a bit more user friendly ? I like to resize it by hand while doing precalibration in order to have it as big as possible and still read the results... thanks, From: leescratchy@xxxxxxxxxxx To: argyllcms@xxxxxxxxxxxxx Subject: [argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2 Date: Tue, 25 Dec 2007 23:19:19 +0000 ok thanks for the reply, but I run XP SP2 so when you talk about X11 I'm kinda lost :) BTW, I got a question about the precalibration if you don't mind. I get : Target B 0.44, x 0.3128, y 0.3291 \ Current B 0.43, x 0.4055, y 0.3743 DE 22.7 R-- G- B+ so it says to remove a lot of red, a bit of green and add some blue, right ? but If add some blue, "B" raises....if I take off some green "x" raises....so what's up with that ? so "B" stands for blue, but "x" and "y" have no direct link with R and G ? and also, you said that it was a bad idea to install a newer version of "libusb-win32-filter-bin" higher than the one you use in the modified drivers.....but there's only "libusb-win32-filter-bin-0.1.12.1.exe" on the official webpage. and "libusb-win32-filter-bin-0.1.10.2.exe" is nowhere to be found :( any chance you could offer a link to it on your own website ? Thanks again! -Maxime > Date: Mon, 24 Dec 2007 01:09:45 +1100 > From: graeme@xxxxxxxxxxxxx > To: argyllcms@xxxxxxxxxxxxx > Subject: [argyllcms] Re: dispcal: Warning - RegOpenKeyEx failed with 2 > > lee scratchy wrote: > > > actually I was more wondering about the DE measurements precision on the s2 > > compared to the i1 display(which is supposedly very close to the i1 pro). > > > when the s2 gives me a 0.8 average DE, does that mean it's completely off.. > > ..and might just be >10 average if I was to check with a i1 display ? > > You can't tell what the distribution of errors is from the average. 0.8 DE > average is generally something that would be regarded as good. But it > says nothing about the absolute accuracy. > > > but you seem to agree that the s2 is quite off on that point ? also with > > LCD ? > > It's impossible to say without a reference instrument to compare it to. > The self check error reports indicate how well the display has been > made to conform to the target, and how consistent the measurements > are. But the absolute accuracy can't really be determined without > something independent to compare with. > > > I'm already VERY happy with the PQ, but the idea of achieving better DE > > with a i1 > > display is starting to grow on me ;) > > It may be slightly more consistent in its readings, and therefore > give a lower self check report, but the visible effect would be > hard to predict. Each type of colorimetric instrument will probably > have a slightly different calibration for a given type of display, > and therefore if compared side by side, may look slightly > different. Once again, compared in isolation you may be > hard pressed to see a difference due to this cause. > > And just to correct myself: > > >> The main advantage of the Eye One Pro is that it is going to be more > >> accurate with any spectrum that a colorimeter has been specially > ^ not > >> calibrated to. The disadvantage is that it tends to collect less > >> light than a colorimeter, so you really need a longer integration time > >> to give a repeatable reading. > > Graeme Gill. > Express yourself instantly with MSN Messenger! MSN Messenger _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/