Hi, Edmund, can you tell me, what is wrong with native driver? argyllcms@xxxxxxxxxxxxx napisał(a): > i used Monaco amd a DTP 70 several years ago to profile a Selphy 300 > with a 343 step target on two cards. I think one superwide card might > suffice. However in the end i gained little in quality; every change > of paper and ribbon really needs rerunning the profile. if you have > thr native driver, forget it, if another dtiver, email me and i will > run you a profile on dtp70 or isis provided you add a picture postcard > to the target cards :-) > > Edmund > > edmundronald at gmail dot com > > On Friday, May 20, 2011, Nikolay Pokhilchenko <nikolay_po@xxxxxxx> wrote: > > > > Preliminary profiling helps the targen to take real device response in > > account. Preliminary profile can't limit target gamut, it only shows > > target gamut on real device not the gamut on generic printer. There is no > > aims to limit gamut. There is other aims. > > If device response is known, targen able to place test points in whole > > gamut volume more effectively. For example, if device is prone to dark > > tones, without preliminary profile, targen will place the patches > > uniformly in device space. As a result the target will characterize the > > darks better than the lights. In some cases with non-linearized devices > > with dense printing, the result without the preliminary porofile is > > unacceptable. If there is correct preliminary profile, targen places more > > light patches and less dark ones, so resulting target will characterize > > the darks and lights both the best way. > > Another aim of preliminary profile is robust chart recognition. The > > predicted colors in ti1 file will be much more exact. Exact colors helps > > the printtarg place the patches on the target while chart generation, > > helps the chertread recognize the patches and the strips while reading. > > The strip reading of the chart may be unreliable or even impossible > > without preliminary profile for non-linearized device. > > > > Fri, 20 May 2011 11:43:00 +0200 пиŃŃПО ĐžŃ "Stefan - ooge.com" > > <stefan@xxxxxxxx>: > > > > as far as i understand you limit the color space boundaries and have > > more "space" for needed colors. > > results in smaller targets with same quality of resulting profile. > > > > but i haven't big experience with that. may you can try out and share > > your results :) > > > > best, > > Stefan > > > > Am 20.05.2011 10:52, schrieb k2mil@xxxxxxxxxxxxxx: > >>> Hi Krzysztof, > >>> > >>> yes, you can make "pre-conditioning targets". > >> > >>> http://www.argyllcms.com/doc/targen.html#c > >>> > >>> best, > >>> Stefan > >> > >> Hi > >> Stefan are you sure, that preconditioning is not only limiting color > >> space boundaries known from existing printer profile? Maybe I am wrong, > >> but IMHO it is for avoiding color values out of device color space. > >> Krzysztof > >> > >> > > > > > > > -- Krzysztof Tomczyk tel. 609187077