[IPOL announce] new preprint: The Heeger & Bergen Pyramid Based Texture Synthesis Algorithm

[announcements about the IPOL journal]

A new preprint is available in IPOL: http://www.ipol.im/pub/pre/79/


The Heeger & Bergen Pyramid Based Texture Synthesis Algorithm
by Thibaud Briand, Jonathan Vacher, Bruno Galerne and Julien Rabin


Abstract:
This contribution deals with the Heeger-Bergen pyramid-based texture analysis/synthesis algorithm. It brings a detailed explanation of the original algorithm tested on many characteristic examples. Our analysis reproduces the original results, but also brings a minor improvement concerning non-periodic textures. Inspired by visual perception theories, Heeger and Bergen proposed to characterize a texture by its first-order statistics of both its color and responses to multiscale and multi-orientation filters, namely the steerable pyramid. The Heeger-Bergen algorithm consists in the following procedure: starting from a white noise image, histogram matchings are performed to the noise alternatively in both the image domain and steerable pyramid domain, so that all the output histograms match the ones of the input texture. The algorithm available in the demo is a slightly improved version treating non-periodic textures by a "periodic+smooth" decomposition. The algorithm works with color textures and is able to synthesize textures with larger size. The original version of the Heeger-Bergen algorithm (where the boundaries are handled by mirror symmetrization) is optional in the source code.

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