SheetM
January 27, 2019, 9:28am
1
Hi folks,
When used from the command line, GEGL seems to produce artifact white lines in the output image.
The white lines are only produced in the command line use of GEGL, since the same effect produces no white lines when used in GIMP.
Please see this GEGL issue for details:
Any ideas on what is causing the white lines artifact?
Thanks!
bazza
(http://4232.cf)
January 28, 2019, 3:37am
2
I use this way:
gegl -p -o output.png -x "<gegl><node operation='gegl:c2g'><params><param name='radius'>1300</param><param name='samples'>4</param><param name='iterations'>23</param></params></node><node operation='gegl:load'><params><param name='path'>River_Shannon_from_Drumsna_bridge.jpg</param></params></node></gegl>"
SheetM
January 31, 2019, 6:14am
3
@bazza Thanks!
using your command I still get the same while horizontal lines.
Do you not get any lines at all?
bazza
(http://4232.cf)
January 31, 2019, 3:14pm
4
The documentation of gegl is a bit complicated and does not work the help
heckflosse
(Ingo Weyrich)
January 31, 2019, 3:23pm
5
@SheetM
7 lines with same distance. May be a wrong multithreading. Did you get this on an 8-core machine?
SheetM
January 31, 2019, 10:01pm
6
@heckfosse
Yep, a Intel© Core™ i7-2600 CPU @ 3.40GHz × 4
heckflosse
(Ingo Weyrich)
January 31, 2019, 10:12pm
7
@SheetM
7 (n-1) lines dividing an image in 8 (n) parts of same size is often an indicator for a wrong parallelization on an 8(n)-core cpu.
1 Like