Hello All, thank you for your feedback. The initial idea of my questions was to get insights of your workflows. How do you prepare images for web.
I know that this can be done with darktable ( have read the manual ;-) ). But as Roman mentioned the styles (during export) are not applied to the downscaled image they are added to the history stack. Let me summarize your feedback: (not all have replied to mailing list that's why I summarize it) - Export with Darkktable full resolution as TIFF and downscale with Digikam - Export and downscale with Darktable and append a style to sharpen. Create styles for export like 640-sharpen, 1280-sharpen, 2048-sharpen etc. - Export full resolution with Darktable and use mogrify as part of Imagemagick to create imgaes for web e.g. mogrify -quality "85%" -resize 900x900 -unsharp 1.5x1+0.7+0.2 *.jpg Let's see what others recommend. Thx 2017-03-28 0:26 GMT+02:00 <darkta...@911networks.com>: > On Mon, 27 Mar 2017 23:58:19 +0200 > Lorenzo Bolzani <l.bolz...@gmail.com> wrote: > > >I just did a quick test: one export with no style applied and another > >export with a custom style containing sharpening set to max > >settings. The two exported files are clearly different. > > > >So I think the best option for downscale is to create a few styles > >(like 640-sharpen, 1280-sharpen, 2048-sharpen, etc.) and use the > >best one. > > > >About what kind of sharpening to use, I use all the ones you > >mentioned (local contrast, highpass, etc.) often more the one at the > >same time. They are different. I usually use the basic "sharpen" > >with these settings: 1600, 0.800, 250. The threshold value depends > >on how much noise is there in the picture as sharpening enhance the > >noise. I rarely use the equalizer for simple sharpening only. High > >pass with different settings and blend modes (e.g. softlight) gives > >very different results as does local contrast. > > I have also gone the route of try this, try that: local contrast, > sharpening and high pass. > > I ended up with mogrify which is part of imagemagick which is > available for both mac and linux > > I export the jpegs to a temp directory and use: > > > mogrify -quality "85%" -resize 900x900 -unsharp 1.5x1+0.7+0.2 *.jpg > > It's extremely fast and I find it the sharpening more pleasing > > -- > sknahT > > vyS > ____________________________________________________________ > ________________ > darktable user mailing list > to unsubscribe send a mail to darktable-user+unsubscribe@ > lists.darktable.org > > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
