any experiences with c2g?

The first observation:
c2g in Delabolatory works several times faster than in the Gimp (GEGL).

It is very fast.

Any way to allow the down and up arrows on the keyboard to select from the drop down menu instead of using the mouse always?

I use mouse/tablet to work with menu, no experiences with keyboard

About c2g.... speed depends on "samples", more samples gives you slower algorithm but less noise.
Radius doesn't affect speed, but "halo" depends on it.

You could try to use "luminance" mode then decrease opacity.

If you want to blur/curve/anything first, then you need to add "copy" layer and then blend last layer to copied "0" layer (click invert and play opacity). Have fun.

Thanks Jacek.

also gegl c2g speed depend very much from the setting, the default is not too slow but as soon you increase the value it really slow down.

Did anybody tried to make a confront gegl-delaboratory c2g using similar setting ?

PhotoComix please notice that:
1) delaboratory uses simpler algorithm, idea is based on gegl c2g, but this is not the same
2) delaboratory uses 32-bit channels while gimp uses 8-bit
3) in gimp you call operation once, in delaboratory preview is autogenerated each time you move slider, and full-size image is generated just before save / export to gimp

delaboratory version 0.7.3.1 has been released

this version introduces "basic user interface", with buttons like "CMYK curves" or "LAB vignette" you don't need to operate on conversions, you don't need to understand colorspace, you just click one button and then set sliders

in the background I am working on stability and I am trying to separate wxWidgets code so it will be possible to create gtk+ or console client (in far future, months)

there is still some work before full 0.8 release but you can see the direction in 0.7.3.1, have fun

delaboratory 0.7.3.3 has been released, it fixes all known stability problems on Windows and supports pseudogrey from this thread: http://www.flickr.com/groups/gimpusers/ ... 198258246/