Hello,
Yes, this seems obvious to me : I don't expect my TV to behave the same way when dysplaying photos from my computer and watching a blu-ray or simply TV. OTOH, if I play a blu-ray form the PC's optical drive, it will use the same profile that was generated and stored into the OS. So, I might have to switch from "normal" to "calibrated" depending on the way I use it. I'm going to google a bit more about this. Regards, J.-Luc > Message du 23/06/17 18:22 > De : "Guillermo Rozas" > A : "darktable forum" > Copie à : > Objet : Re: [darktable-user] TV characterizing (was : Which config for > Darktable) > > One point I forgot to make: this is from the point of view of someone > using the TV as a PC monitor. The calibration is only valid when the > TV is connected to the PC, because all the profiles are applied on the > graphic card and the operating system. If one needs to calibrate the > TV for independent use, then it is a completely different problem > (that probably requieres different software more than a different > probe). > Regards, > Guillermo > > On Fri, Jun 23, 2017 at 9:14 AM, Guillermo Rozas wrote: > > I did it with the same probe (Spyder 5) that I used to calibrate my PC > > monitors, connecting the TV as an external monitor via HDMI and > > following the same procedure I followed for the monitors (using > > DisplayCal). One caveat: the TV I calibrated had very bad behavior at > > low light levels, so even if in general the color and contrast > > improved a lot, it resulted in very strong banding for darker areas. > > Nothing one can do about that other than buying a better TV. > > > > There shouldn't be a difference between an external HDMI monitor and a > > TV from the point of view of the calibration, as they are > > indistinguishable for the PC. There may be differences on hardware for > > different models (illumination source, pixel technology), but nothing > > that you cannot find in certain models of PC monitors anyways. In the > > end a TV is just a monitor with a tuner... > > > > It is also true that across generations DataColor claims it has been > > improving the detector, so maybe for the typical monitor and typical > > TV around the Spyder 2 release date the typical technologies were so > > different that a sensor tuned for monitors worked very badly for TVs. > > It could also be that DataColor just wanted to get more money just for > > a software upgrade (which is the situation now between most of their > > probes, easily overcomed by using DisplayCal) ;) > > > > Best regards, > > Guillermo > > > > On Fri, Jun 23, 2017 at 8:18 AM, Jean-Luc CECCOLI > > wrote: > >>> Message du 23/06/17 14:36 > >>> De : "Guillermo Rozas" > >>> A : "darktable forum" > >>> Copie à : > >>> Objet : Re: [darktable-user] Which config for Darktable > >>> > >>> Hi, > >>> > >>> On Thu, Jun 22, 2017 at 5:10 PM, GDoirat - GMail > >>> wrote: > >>> > I use darktable for long time and i want to put my pictures on a NAS to > >>> > have more security. > >>> > >>> [.../...] > >> > >> Hello, > >> > >> > >>> > If I get your proposed configuration right, this might mean installing a > >>> > 4GB gaming graphics card on a headless system -- I think it is worth > >>> > it. But > >>> > I wonder if it is possible to get the colors right on a TV, is > >>> > calibration > >>> > possible for a TV backend? > >>> > >>> Calibration is possible using the same systems one uses for a normal > >>> monitor (I calibrated one using a Spyder 5). The posible drawback I > >>> see is that the (color) quality standard for TVs seems to be lower > >>> than por PC monitors at the same price point, at least in my very > >>> small sample of 2 of each one. > >>> > >> > >> I once tried to calibrate (characterize ?) the TV I use as a monitor with > >> my > >> spyder 2 and couldn't get it work. > >> > >> I then read a thread pretending that the only way for this was to use a > >> specially made probe, the spyder4TV HD. > >> > >> You mean it can be done with a "normal" calibrating probe ? Or does one > >> need > >> a particuliar model ? > >> > >> > >> > >> Rgrds, > >> > >> > >> > >> J.-Luc > >> > >> > >> > >> > >> > >> > >> > >> > >> ____________________________________________________________________________ > >> darktable user mailing list to unsubscribe send a mail to > >> [email protected] > ____________________________________________________________________________ > darktable user mailing list > to unsubscribe send a mail to [email protected] > > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
