G'MIC - GREYC's Magic for Image Computing: A Full-Featured Open-Source Framework for Image Processing
GREYC CNRS ENSICAEN UNICAEN

A Full-Featured Open-Source Framework for Image Processing

Latest stable version: 3.4.3        Current pre-release: 3.5.0 (2024/12/18)

Reference

Table of Contents  ▸  List of Commands  ▸  Features Extraction  ▸  at_quadrangle◀  at_line    |    barycenter  ▶

at_quadrangle

Arguments:

Description:

Retrieve pixels of the selected images belonging to the specified 2D or 3D quadrangle.

interpolation can be { 0:nearest-neighbor | 1:linear | 2:cubic }.
boundary_conditions can be { 0:dirichlet | 1:neumann | 2:periodic | 3:mirror }.

Example of use:

image.jpg params=5%,5%,95%,5%,60%,95%,40%,95% +at_quadrangle $params polygon.. 4,$params,0.5,255

Command: image.jpg params=5%,5%,95%,5%,60%,95%,40%,95% +at_quadrangle $params polygon.. 4,$params,0.5,255
Command: image.jpg params=5%,5%,95%,5%,60%,95%,40%,95% +at_quadrangle $params polygon.. 4,$params,0.5,255
G'MIC - GREYC's Magic for Image Computing: A Full-Featured Open-Source Framework for Image Processing

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.