wwp@yahoogroups.com:
Re: My first cilindrical panoramas
Jaume Llorens 2007-Mar-15 15:28:00
Thanks for the comments, advices and links, Alessandro. They are very
useful to me.
I use the Photomatix only to do some tonemapping. So I'll merge before
stitch.
Really a great idea, the way you have to solve "come nascondo il
treppiede?", and very clear the workflow :-)
The panos that you show at ziouga.it are really impressive. I have
enjoyed the visit!
Thank you.
Jaume
En/na Alessandro Ugazio ha escrit:
>
> > They are the first cilyndrical panoramas I make.
>
> Cubic, not cilyndrical.
> They're really beautiful, I like them!
> My first cubic panos weren't so nice, particularily those taken at
> night...
>
> > - Final equirectangular image sizes 4000 x 2000px. Is it enougt to
> > fullscreen panorama? Which is the better size.. ?
>
> I usually adopt these sizes:
> <http://geoimages.berkeley.edu/wwp/practical/Sizes.html
> <http://geoimages.berkeley.edu/wwp/practical/Sizes.html>>
>
> > - I think imatges are not so sharp. I'd like to obtain a better
> > sharpness.. Which are the usual mistakes that decrease sharpness.. or
> > do you know how to improve it?
>
> Render at more than 6000x3000, but you'll need some RAM...
>
> > - In large expositions, when hand held is not possible, is there any
> > way to shot the bottom photo?
>
> I usually do like this:
> <http://www.ziouga.it/Come/Come.html
> <http://www.ziouga.it/Come/Come.html>>
> (Click on the first two images)
> This way I can also shoot tripod bracketed nadir shots.
> Some Photoshop skill required to do "invisible" merging :)
>
> > - If soft like Photomatix is used, is better to blend separated images
> > before stitch, or first stitch and then blend the different exposured
> > panoramas?
>
> I tried both (in Photoshop), and now I prefer merging bracketed shots
> before stitching
> them, because it's easier to shift images if the camera slightly moved
> between shots (wind
> or else).
>
> Anyway, if you just need to do some tonemapping (for example,
> replacing burned lights
> with the dark shots, or taking shadow areas from the light ones), I'd
> do like above.
>
> If you want to generate .HDR files instead, you'll need to drop full
> renders (of differently
> exposed shots) into Photomatix (well, I actually never used it, so I
> may be wrong).
>
> > Thank you very much (and sorry by English mistakes)
> >
> > Jaume Llorens
>
> Sorry for my english as well, I'm Italian...
>
> Alessandro
>