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. Bye Lorenzo 2017-03-27 17:37 GMT+02:00 Roman Lebedev <[email protected]>: > On Mon, Mar 27, 2017 at 6:09 PM, August Schwerdfeger > <[email protected]> wrote: > > According to the manual section on exporting images [1], you should be > able > > to do this entirely with Darktable -- you can use the "Max size" option > for > > downscaling > > > and the "Style" option for applying additional sharpening, etc., during > the export. > Just in case, please do re-read that usermanual section once more > (hint: that style will *not* be applied to the final exported image, > but will simply be > added to the image's history stack, i.e. it does not allow to cheat > the pipe order) > > > -- > > August Schwerdfeger > Roman. > > > [email protected] > > > > On Mon, Mar 27, 2017 at 8:48 AM, Sascha Oleszczuk <[email protected]> > > wrote: > >> > >> Hi All > >> > >> no recommendation until now. > >> How do you export your images for web? > >> > >> Thx > >> > >> 2017-03-24 19:47 GMT+01:00 Sascha Oleszczuk <[email protected]>: > >>> > >>> Hi, > >>> > >>> how do you export your images for web? > >>> Do you downscale / resize them during export with darktable? > >>> Or do you downscale them with darktable + append an extra sharpening > >>> style? > >>> If yes how are the settings of your sharpening style? Sharpening or > local > >>> contrast or high pass or equilizer? and what are the values? > >>> Or do you export in full resolution and you use another software for > >>> downscaling? > >>> > >>> Thx in advance > >>> Sascha > >> > >> > >> > >> > >> ____________________________________________________________ > ________________ > >> darktable user mailing list to unsubscribe send a mail to > >> [email protected] > > > > > > > > ____________________________________________________________ > ________________ > > darktable user mailing list to unsubscribe send a mail to > > [email protected] > ____________________________________________________________ > ________________ > 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 [email protected]
