On Sep 28, 6:59 am, kfj <[email protected]> wrote: > On 28 Sep., 03:00, JPW <[email protected]> wrote: > > > Then I ran the 5 jpegs through enfuse with & without the options you > > suggested, > > which I discovered should be: > > --saturation-weight=0 --exposure-mu=.5 > > so you didn't run it with the parameters I suggested. I proposed you > set exposure sigma to fifty and not exposure mu to .5. Try and do as I > say. Exposure mu is .5 anyway by default, as you could have gleaned > from the enfuse manual. It's the sigma you want to set to a (probably > high) value, like 50. I tried it out for you, posted you the data and > what do you do? Know better. > > Kay
Easy, Kay. Please assume the best of me, as I do of you. And remember, as I have told you, I am a totally naive user of any but the most basic feature of Hugin, PanoTools and command line programs in general. This is what you said: "I have a hunch that for your particular purpose you may fare better if you increase enfuse's exposure sigma, since your not aiming at well- exposedness but simply want to average the shots to remove noise. The default value is .25 (I think), so if you enter --exposure-sigma=X with X (probably much) higher than .25, you may get the results you want. And set saturation-weight to zero. Really, enfuse is a tool to pick the 'best' bits from several images, but with noisy images, how would it know what is best? Actually this makes me think that it might be a nice option to add to enfuse: something like --fuse-all, which would give equal weight to pixels from all images and just use the fusing mechanism. But a large value for exposure-sigma should do the trick as well. so for your enfuse options, try something like --saturation-weight=0 --exposure-mu=50" These were my actions: I was confused. I could find no reference to "--exposure-sigma" in the enfuse manual file in my Hugin help. I was not sure how to do what you said. So I asked you what you meant: "So this is a whole other area I have not yet waded into because I really don't know how to use the flags/switches (whatever they call them.) To do what you recommend (this BTW is an example of how esoteric knowledge is assumed in the documentation—although you gave me a complete command line instead of assuming I would know how to compose it. Thanks!) would I then enter '--saturation-weight=0 --exposure- mu=50' into the 'enfuse' Options box on the Stitcher page?" Bruno kindly answered back to me—"Yes" I let drop the "exposure-sigma vs exposure-mu" conflict and copied your command: --saturation-weight=0 --exposure-mu=50 and pasted it into the enfuse options box. When I ran it I saw zero difference in the output from the default output. I ran it several times and noticed that in the program console (or whatever you call it) that there was a warning that flashed by. The warning said something like "--exposure-mu too high cannot exceed 1. Hugin set exposure-mu at 1 instead" (is this what it said? I don't know. It flashed by to quick for me to be sure.) This stimulated me to dig further into the manual where I saw something indicating something like: "--exposure-mu=x where x must be between 0 and 1" I assumed you made a typo and meant to say .50 rather than 50. I then ran the altered command and it ran without a warning. Anyway this is why I posted to you, "which I discovered should be: --saturation-weight=0 --exposure-mu=.5 but only by chance (where do the logs go where I can read them?) " (BTW, I still want to know how I can see the feedback from the program so I can see what is happening during a run.) It's not that I "know better," it's that I "know hardly anything." So, if you give me explicit instructions that I can act upon, and tell me exactly what command line to enter where, I will be glad to try your suggestion, whatever it is ;-) -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx
