Hi Larry, Thank you for taking the time to provide such a thorough response. Sorry, you had to repeat yourself. I just found Thiago’s post about this from 2014 (http://lists.openimageio.org/pipermail/oiio-dev-openimageio.org/2014-August/013430.html <http://lists.openimageio.org/pipermail/oiio-dev-openimageio.org/2014-August/013430.html>). Yes, the --diff option with --fail 0.05 and --failpercent 0.1 are working well to address LSB error for my automated tests. For anyone new to oiiotool, --fail and --failpercent must go before —diff.
Thank you, Ryan > On 31 May 2017, at 5:07 am, Larry Gritz <l...@larrygritz.com> wrote: > > I should add that, while -pdiff seemed like a good idea at the time, I'm not > sure it's any better in practice than using regular --diff with wisely chosen > epsilons to allow a certain amount of LSB error to not be counted as failure. > I do that all the time for testsuite image comparisons, where I expect just a > little bit of error against the reference output, for different platforms or > different versions of dependent libraries. > > Oh my, this is embarrassing. I see now that the oiiotool docs do not even > explain how those thresholds can be set. So sorry. The undocumented commands > are --fail, --failpercent, --warn, --warnpercent, --hardfail. It may be > undocumented in the oiiotool section of the OIIO docs, but the same commands > are explained in the "idiff" section of the docs (they work the same in the > two programs). I'll get that oversight fixed. > > It's also been suggested that I look into a replacement (or additional) > perceptual diff based on CIEDE2000 or DE2000K (google them for details). > Seems like a good idea, but I haven't had time to do it. I'd certainly be > very supportive if anybody felt like it would be a project they wanted to > work on and submit it as a PR. > > >> On May 29, 2017, at 10:16 PM, Ryan Heniser <heni...@yahoo.com >> <mailto:heni...@yahoo.com>> wrote: >> >> Ugg… Sorry, I overlooked >> >> oiiotool --help >> ... >> --pdiff Print report on the perceptual difference of >> two images >> >> >>> On 30 May 2017, at 2:34 pm, Ryan Heniser <heni...@yahoo.com >>> <mailto:heni...@yahoo.com>> wrote: >>> >>> Is there a popular or de facto industry standard tool for OpenEXR >>> perceptual image differencing? >>> >>> Kind regards, >>> >>> ryan heniser >>> senior shading technical director | ryan.heni...@rsp.com.au >>> <mailto:ryan.heni...@rsp.com.au> >>> rising sun pictures | http://www.rsp.com.au <http://www.rsp.com.au/> >>> +61 8 8400 6400 >> >> _______________________________________________ >> Openexr-devel mailing list >> Openexr-devel@nongnu.org <mailto:Openexr-devel@nongnu.org> >> https://lists.nongnu.org/mailman/listinfo/openexr-devel > > -- > Larry Gritz > l...@larrygritz.com <mailto:l...@larrygritz.com> > >
_______________________________________________ Openexr-devel mailing list Openexr-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/openexr-devel
