Re: [darktable-devel] Improved color aberration auto-correction

Hallöchen! Gert van der Plas - Schrama writes: > [...] > > Lensmakers try to make it easily corrected. As some lenses have > mustache shape distortion no doubt some require more than linear > compensation particular wide angle and fish eyes. Well, you always have to make compromises. The most a

Re: [darktable-devel] Improved color aberration auto-correction

Hi Thorsten, Stéphane is probably not interested in visually 'pleasing' results but also to improve the performance of ppg and amaze. As mentioned particular amaze expects it to be absent and uses the color gradiënts to get superresolution (sub Nyquist) details. CA screws up these gradient estimat

Re: [darktable-devel] Improved color aberration auto-correction

Hallöchen! Gert van der Plas - Schrama writes: >> Is it really necessary to take non-radial components into >> account? From my experience with distortion, I can hardly >> imagine this. > > Not sure, but I would expect tilt and shift lenses, adapter > mounted lenses to need translational and ske

Re: [darktable-devel] Improved color aberration auto-correction

> Is it really necessary to take non-radial components into account? > >From my experience with distortion, I can hardly imagine this. Not sure, but I would expect tilt and shift lenses, adapter mounted lenses to need translational and skewed components. As well as wacked lenses with some defects

Re: [darktable-devel] Improved color aberration auto-correction

> So, currently the best option is to use auto-correction and disable > TCA in the lensfun module. Agreed, it is my preferred workflow. > has changed. The fitting is now computed based on better estimations, > with proper weighting. For example, a large pseudo-uniform blue sky > does not have a b

Re: [darktable-devel] Improved color aberration auto-correction

Hallöchen! Stéphane Gimenez writes: > Hi Gert, > > [...] > > [...] Unfortunately the corrections that are computed by lensfun > contain "fuzziness" (they are kind of non-continuous due to big > rounding errors), [...] Could you elaborate on that? What is the source of those rounding errors? >

[darktable-devel] new highlight reconstruction - banding artefacts

Hi, You asked for "good" highlight reconstruction samples? Here I've one with some banding artefacts in the sky. Do I make somthing wrong? Sample export JPG: https://homepage.boku.ac.at/kanzian/dl/IMGP2004_02.jpg RAW: https://homepage.boku.ac.at/kanzian/dl/IMGP2004.dng XMP: https://homepage.bok

Re: [darktable-devel] Improved color aberration auto-correction

Hi Gert, Thanks for the reply. I'm cc-ing the list since others might be interested in the answers as well. > This is great news. Particular as the auto correct works in RAW > compared to the lensfun module and thus improves the demosaic output > of AMAZE (as stated by it's designer). Indeed, wh

[darktable-devel] Improved color aberration auto-correction

Hi there, I've (vastly) improved the color aberration auto-correction algorithm. Color correction is now almost perfect (precise roughly to the 10th of pixel) for all the pictures it tested it on. But the new code needs more testing, especially on pictures from other cameras. You can get it here:

Re: [darktable-devel] Website update?

2014-04-14 9:59 GMT+02:00 Simon : > Thanksk for the notice, guys, I updated the page with your names! > > /Simon > > Thank you, Simon. -- Hasta proxima Bartokk Gpg public key: 0x73E5AEA3

Re: [darktable-devel] Website update?

Thanksk for the notice, guys, I updated the page with your names! /Simon On 04/12/2014 02:03 PM, bartokk wrote: > > And what about updating the Italian ones with Mauro "bartokk" > Bartoccelli, since my predecessor Daniele Giorgis asked to be removed? > > Mauro from Android > Gpg public key: 0x73