Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread johannes hanika
..needed to search a bit, but i mean that one: http://graphics.stanford.edu/papers/hdrp/hasinoff-hdrplus-sigasia16.pdf because it could run as a preprocess which would make it easier to suffer through the couple of seconds of processing time that it'd probably need. -jo On Thu, Apr 27, 2017 at

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread johannes hanika
great, we've got a flamewar! let me join the fun: i'm very much unconvinced by their examples re: lens blur or generic sharpening. it has the typical fourier artifacts (even though the ringing seems surprisingly well balanced in their examples. but i can still see it). i think our current local co

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread The Ritz
On April 27, 2017 2:03:47 PM Roman Lebedev wrote: Are there any actual use-cases for this algorithm, specifically in darktable? Did you bother opening the webpage (relaunch.piccureplus.com) the OP gave and looking at their example section? Do you think we don't have landscape, wildlife, i

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Heiko Bauke
Dear Roman, Am 27.04.2017 um 14:02 schrieb Roman Lebedev: Are there any actual use-cases for this algorithm, specifically in darktable? if I understand it correctly, this kind of filter removes various kinds of blur that might be caused by imperfections of the optical system or motions of th

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Aurélien PIERRE
It could help with low-end lenses, diffraction at F/16 and less, focusing problems, low-pass filter recovering. In DT there is a sharpness module enabled by default anyway, prone to halos, and limited in range. Deconvolution is more clever than frequencies manipulations, it works on all frequencies

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Roman Lebedev
Are there any actual use-cases for this algorithm, specifically in darktable? I'd imagine 95+% of blurred images/images with motion blur where that is not intentional, would be deleted and not processed.. Roman. On Thu, Apr 27, 2017 at 1:06 PM, Aurélien PIERRE wrote: > Sorry for the spam, but I

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Aurélien PIERRE
Sorry for the spam, but I have found a 2015 article which adresses some of the limits of the previous ones (with Matlab code) : http://www.cvg.unibe.ch/dperrone/logtv/index.html *Aurélien PIERRE* aurelienpierre.com --

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Aurélien PIERRE
I have found some other implementations of blind deconvolution which seem lighter. A Matlab example here : http://cs.nyu.edu/~dilip/research/blind-deconvolution/. *Aurélien PIERRE* aurelienpierre.com -

Re: [darktable-dev] Adaptative deconvolution

2017-04-27 Thread Heiko Bauke
Hi, Am 27.04.2017 um 10:27 schrieb Aurélien PIERRE: I found a software (http://relaunch.piccureplus.com/) which goal is to apply adaptative deconvolution to pictures in order to remove blur and noise. The result is quite amazing, without halos. [...] looks very interesting. [...] I know some