Re: [darktable-devel] focus detection

2013-11-05 Thread johannes hanika
On Wed, Nov 6, 2013 at 9:33 AM, S. Witt wrote: > Am 05.11.2013 20:36, schrieb johannes hanika: > > b/w conversion with some color filtering can boost noise. > > so i think hacking something up for that special case is not a good idea. > Probably not. However, using the squared intensity helps her

Re: [darktable-devel] focus detection

2013-11-05 Thread S. Witt
Am 05.11.2013 20:36, schrieb johannes hanika: > b/w conversion with some color filtering can boost noise. > so i think hacking something up for that special case is not a good idea. Probably not. However, using the squared intensity helps here a bit. > those files don't have a thumbnail, so it doe

Re: [darktable-devel] focus detection

2013-11-05 Thread johannes hanika
On Wed, Nov 6, 2013 at 8:28 AM, S. Witt wrote: > Hi > > Am 05.11.2013 09:37, schrieb johannes hanika: > > maybe the noise in that image would need an additional threshold on > > sharpness, depending on iso/noise sigma from our noise profiles. fwiw i > > didn't see any problem with my camera up to

Re: [darktable-devel] focus detection

2013-11-05 Thread S. Witt
Hi Am 05.11.2013 09:37, schrieb johannes hanika: > maybe the noise in that image would need an additional threshold on > sharpness, depending on iso/noise sigma from our noise profiles. fwiw i > didn't see any problem with my camera up to iso 6400. maybe it's because > your input is a processed im

Re: [darktable-devel] focus detection

2013-11-05 Thread johannes hanika
heya, thanks for testing, your squared intensity looks better indeed. maybe the noise in that image would need an additional threshold on sharpness, depending on iso/noise sigma from our noise profiles. fwiw i didn't see any problem with my camera up to iso 6400. maybe it's because your input is

[darktable-devel] focus detection

2013-11-04 Thread S. Witt
Hi the new focus detection is a really interesting feature. From my point of view, judging sharpness quickly in lighttable, is (or now was? ;-) ) a weak point in darktable. I tried this feature with some images. Especially for some (noisier) concert pictures, I noticed that often areas are detect