display_quiver
Arguments:
- _size_factor>0,_arrow_size>=0,_color_mode={ 0:monochrome | 1:grayscale | 2:color }
Description:
Render selected images of 2D vectors as a field of 2D arrows.
(equivalent to shortcut command dq).
Default values:
size_factor=16, arrow_size=1.5 and color_mode=1.
Example of use:
image.jpg +luminance gradient[-1] xy rv[-2,-1] *[-2] -1 a[-2,-1] c crop 60,10,90,30 +display_quiver[1] ,

Command:
image.jpg +luminance gradient[-1] xy rv[-2,-1] *[-2] -1 a[-2,-1] c crop 60,10,90,30 +display_quiver[1] ,

Command:
image.jpg +luminance gradient[-1] xy rv[-2,-1] *[-2] -1 a[-2,-1] c crop 60,10,90,30 +display_quiver[1] ,

Command:
image.jpg +luminance gradient[-1] xy rv[-2,-1] *[-2] -1 a[-2,-1] c crop 60,10,90,30 +display_quiver[1] ,
G'MIC is an open-source software distributed under the
CeCILL free software licenses (LGPL-like and/or
GPL-compatible).
Copyrights (C) Since July 2008,
David Tschumperlé - GREYC UMR CNRS 6072, Image Team.