Hello Nikolay, I´ll try this one and get back. Thank´s Vladimir 2011/11/14 Nikolay Pokhilchenko <nikolay_po@xxxxxxx>: > Vladimir, try to build an intermediate smoothed profile: > > colprof -v -al -qu -bn -r10 -D"Smoothed. Only A2B" packagingPrint > > You've get smoothed device behavior in A2B table of this profile. > Then You can fakeread Your (or any other) chart by smoothed profile. As a > result You'll have the same (or other) chart but with smoothed data. This > data can help You to build the profile with more smooth black generation. > I suppose the 390% TIL is quite high for the process You profiling. Argyll > says to me that 265..270% TIL is enough. > > > 14 nov 2011, 17:22 (+4:00) Vladimir Gajic wrote: > >> Hello Alexey, >> >> I?ve allready tried smoothing in PO (value = 10, max). My results >> basically stayed the same -aldough the dot gain curves looked quite >> nice & harmonic. The major problem was the separation. It was full of >> bumps, especially in the black channel. >> >> I?m quite aware that this problem can be partially solved using >> PrintOpen -but the profiles are IMHO far from being optimal. My idea >> behind this posting was something like "pushing the limits of argyll", >> since the print you evaluated ist almost a common condition in the >> packaging field. >> >> Thank?s for reply anyway. >> >> Vladimir >> >> 2011/11/14 Alexey Gribunin <Gribunin@xxxxxxx>: >> > Hello Vladimir! >> > >> > Your printing process has very bad gradation curves. Please take a look on >> > dot gain curves on screenshot. You will not get good results with such dot >> > gain curves. >> > So first of all you need to smooth it. >> > You can do it in PrintOpen, I would suggest to use smoothing factor at >> > least >> > 9. After that you can create ICC profile wherever you want. >> > ArgyllCMS colprof also has average deviation feature -r (something like >> > smoothing), but it cannot do such powerfull smoothing you need. >> > >> > Best regards, >> > Alexey Gribunin. >> > >> > Vladimir Gajic wrote: >> >> >> >> Hello@all >> >> >> >> in the attachment you will find ti3-data from a packaging print I?e >> >> tried to profile using Argyll V.1.3.5. >> >> No matter what I did, I wasn? able to get a decent result, so maybe >> >> on of you guys have a better idea. >> >> The print is very inconsistent, especially the gray-axis. Anyway -this >> >> is quite a real-life situation in packaging. >> >> >> >> I tried also to build a profile using other packages (e.g. PrintOpen). >> >> The results where somehow better, but still not satisfying. >> >> Maybe this example also could be a good test-item for Graeme? >> >> >> >> Some parameters needed: >> >> >> >> Total area coverage: 340% >> >> The separation should be UCR (under colour removal) >> >> The black should start at approx. 25% an reach his maximum at 95% >> >> >> >> Thank? in advance for any input. >> >> >> >> Vladimir >> > >> >> --