Am 27.08.2014 um 10:03 schrieb Carlo Tariciotti:
>  Thanks all for replies.
> Is more correct to apply the sharpening to the final resolution (for
> example, web or print use).
> My workflow for now is:  export from Darktable at 1200x800 px, then i apply
> mogrify -sharpening 0x1 (imagemagick)
> It works well.


May workflow is: Develop (including sharpening) in darkroom for full
resolution export, export always at full resolution and downscale
afterwards with a shell script.
This script scales the image in multiple steps and applies sharpening
after each iteration. To preserve image quality, the mogrify filters are
concatenated into one single mogrify call.

The final call looks like:
> mogrify -orient top-left -colorspace RGB -filter lanczos -resize $args1 
> -unsharp $args -resize $args2 -unsharp $args -resize $args3 -colorspace sRGB

Each step reduces the image size to 2/3 of the previous one.

Regards,
Markus

------------------------------------------------------------------------------
Slashdot TV.  
Video for Nerds.  Stuff that matters.
http://tv.slashdot.org/
_______________________________________________
Darktable-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/darktable-users

Reply via email to