David Brodsky wrote:

> > Too less levels (as already pointed out in some other posts). And the 
> 
> Yeah, that was my first attempt, but I can still blame Canon that it
> can't do more than 3 bracketed images at the same time.

I meant the levels parameter of enfuse...

Regarding the 3 brackets problem: Yes, of course. But there are ways to 
work around this. On windows XP the PTP protocol is already implemented, 
you can even use it fronm a scripting language. gphoto should provide 
similar functionality. There is CHDK for canon point-and-shoot cameras. 
And there is the arduino project of Joergen Gerds (master of gigapixel 
night bracketing): 
http://newyorkpanorama.com/2009/01/21/long-exposure-night-hdr-photography-with-arduino/
Read the full thread at http://www.nabble.com/-to21593128.html

> > tonemapped version has really awful colors. I guess this is a global 
> > tonemapper, hence it doesn't produce halos like all local tonemappers 
> > do. But I wonder why it produces such over-saturated colors.
> 
> pfstmo_mantiuk08 with bit higher color saturation

Aha. There are a lot of tonemappers giving awful results: 
http://dativ.at/logmap/index.html

> > Global tonemappers are limited to a relatively small dynamic range. Good 
> > for a standard sunlit scene like this one but hopeless on interior shots 
> > with sunlit exterior. On the other hand such sunlit scenes should be no 
> > problem for a decent camera. It never was for analog film...
> 
> Again - let's blame cameras' manufacturers :-)

Well, the microscopic sensors of point-and-shoot cameras have physical 
limitations. I bet my old Coolpix E5200 has better dynamic range than 
most popular 10 Megapixel cameras...

> > For higher dynamic range only local tonmappers can give satisfactory 
> > results but they tend to halos much more than enfuse does, which works 
> > locally as well. But the exposure fusion algorithm can do much better as 
> > tufuse shows.
> 
> Tufuse isn't for Linux, is it?

No.

> Anyway, what if I want to make hi-res hdr panos? I haven't found any
> software that works on Linux (other than enfuse/enblend) that can handle
> very large pictures without eating all available memory :-(

Blame the enfuse developers. It's a great program, but there is almost 
no development. I complained about this (and the fact that commercial 
developers once again delivered better products soon after open source 
has initiated a technology) some time ago: Neither enfuse nor enblend 
have zenith and nadir support for sphericals - PTGui has. enfuse doesn't 
go to the limits regarding blend levels, tufuse pro does. etc.

I wish I hadn't messed around with Pascal, PL/SQL and PHP for the past 
20 years and learned C instead (and have enough time) - I would 
participate in development...

-- 
Erik Krause
http://www.erik-krause.de

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