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: 3.5.5        Current pre-release: 3.6.0 (2025/07/18)

Reference

Table of Contents  ▸  List of Commands  ▸  Geometry Manipulation  ▸  scale_dcci2x◀  scale3x    |    seamcarve  ▶

scale_dcci2x

Arguments:

Description:

Double XY-size of selected images, using a directional cubic convolution interpolation,

as described in https://en.wikipedia.org/wiki/Directional_Cubic_Convolution_Interpolation.

Default values:

edge_threshold=1.15, exponent=5 and extend_1px=0.

Example of use:

image.jpg rescale2d 128 +scale_dcci2x ,

Command: image.jpg rescale2d 128 +scale_dcci2x ,
Command: image.jpg rescale2d 128 +scale_dcci2x ,
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.