Source code of the article

G. Tartavel, Y. Gousseau, G. Peyré. Variational Texture Synthesis with Sparsity and Spectrum Constraints. Journal of Mathematical Imaging and Vision, 52(1), pp. 124–144, 2015.

This is an implementation of our texture synthesis algorithm. It is an exemplar-base approach: the goal is to generate a new texture from a sample image.

More details about the algorithm, the variational approach and the sparsity constraints are available in our publications.

This implementation is in Matlab and is composed of a set of *.m files. Documentation is available in Matlab for each function "FCN" by typing:

help FCN

Compile the MEX functions. You can use the Makefile provided in 'mex/':

$ cd mex/ && make

Launch Matlab and execute the editable script or the interactive script:

LaunchExample; LaunchInteractive;

You can use the matlab 'help' command to explore the files:

help Synthesis

Note about the Image Processing toolbox in Matlab. If you don't have it, replacement functions can be found in 'improc_toolbox/'. You can for example add this directory to Matlab's search path:

addpath('improc_toolbox');

Note about the SPAMS toolbox. The SPAMS toolbox provide a more efficient dictionary learning step. It is available here:

• http://spams-devel.gforge.inria.fr/

• README.txt : this information file

• *.png : some images to try the algorithm and the toolboxes

• *.mat : some dictionary already learned (to save time)

• LaunchCopymap.m : editable script to analyze the innovation capacity

• LaunchExample.m : editable script to launch a synthesis

• LaunchInteractive.m : interactive script to launch a synthesis

• Synthesis.m : implements our synthesis algorithm

• Patches.m : interface for patches in an image

• Histogram.m : provides histogram tools (histogram transfer)

• Sparsity.m : provides sparse decomposition functions

• Spectrum.m : provides Fourier spectrum tools (spectrum transfer)

• mex/ : contains the C++ implementation of some MEX functions

• mex/Makefile : useful to compile/generate the MEX files

• improc_toolbox/ : contains a basic implementation of some function provided in Matlab's Image Processing toolbox

Copyright (c) 2015 Guillaume Tartavel