Re: [darktable-user] OT: Merging multiple images

2017-03-01 Thread Urs Schütz
On 03/01/17 14:44, I. Ivanov wrote: I stumble on this not too long ago https://patdavid.net/2013/09/faking-nd-filter-for-long-exposure.html Perhaps if convert has different options as others pointed it may do the work. And it works with 16 bit TIFF out of DT. Regards, B On 2017-03-01 07:49

Re: [darktable-user] OT: Merging multiple images

2017-03-01 Thread Remco Viëtor
On mercredi 1 mars 2017 15:56:57 CET darkta...@911networks.com wrote: (...) > > I would prefer first merge, then use DT. I can easyly convert the raw > image to 16-bit TIFFs without any processing. > (...) Well, no, you can't: if you generate a TIFF from your raw, you'll have at least set the

Re: [darktable-user] OT: Merging multiple images

2017-03-01 Thread junkyardsparkle
On Wed, Mar 1, 2017, at 00:31, johannes hanika wrote: > that's averaging. for star trails/light painting maybe you'd want the > brightest pixel (and for removal of stuff median etc). Yes, a few times I've abused this averaging in cases where it wasn't really the optimal approach, but just

Re: [darktable-user] OT: Merging multiple images

2017-03-01 Thread darktable
On Wed, 1 Mar 2017 13:20:40 +0100 Stéphane Gourichon wrote: >Le 01/03/2017 à 06:57, darkta...@911networks.com a écrit : > >First, it might not be that off-topic. Are your images raw? Yes they are raw. > >You can consider the merge step being done before or

Re: [darktable-user] OT: Merging multiple images

2017-03-01 Thread johannes hanika
hi, On Wed, Mar 1, 2017 at 8:06 PM, wrote: > Did you try the "create HDR" function in darktable? It sometimes works well > for this kind of thing, depending on exactly how much light fell where in > each shot and the overlap... that's averaging. for star