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Darktable’s Liquify, direct Raw distortion

25 August, 2016 by tatica 2 Comments

If something is true when you edit photos, is that you try to capture your subject just as it is, but in a world saturated by “perfection” your clients always ask a bit of retouch; sometimes not even due the person insecurity, but more due symmetry. The truth is that the IWarp tool at GIMP had become my BBF when moving things around was needed, but as always, darktable keeps adding amazing things so my workflow (develop and post-production) happens completely inside this single app.

Liquify is one of the newest modules that can be found at darktable and offers a versatile way of moving pixels around by applying free style distortions to parts of the image. There are three tools to help doing that: points, lines, and curves.  There is a limit of 100 nodes in a single liquify instance. However, take into account that the liquify module requires a lot of computing resources.

You can drag the central point of a node to move the node around. The radius describes the area of the applied effect: the distortion occurs only inside this radius. To change the radius drag the handle at the circumference. A strength vector starting from the center describes the direction of the distortion, and its strength is depicted by the length of the vector. You change the vector by dragging its arrowhead.


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Filed Under: Diseño, Fotografía, General, HowTo, Linux Tagged With: darktable, liquify, module, modulo

Reader Interactions

Comments

  1. PICCORO Lenz McKAY says

    Friday November 9th, 2018 at 13:40

    umm interesante: y ano son diseñadores sino los predecesores de los politicos actuales: masters of the liars! increible coo evolucionan las ramas de trabajo

  2. twohot says

    Tuesday March 6th, 2018 at 11:57

    Nice tool

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About Tatica

I’m a full-time designer, photographer and community people. I love to analyze how this interactive world works. I’m not a programmer, however that’s how I started. I have been in the field since 2005 and have been loving every minute of it.
I love to learn and teach what I know about FLOSS and I enjoy meeting new friends from all around the world.
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