3 papers
cond-mat.stat-mech2001
Scene dependence of the non-gaussian scaling properties of natural images
A. Nevado, A. Turiel, N. Parga
We report results on the scaling properties of changes in contrast of natural images in different visual environments. This study confirms the existence, in a vast class of images,…
cond-mat.stat-mech2001
The multi-fractal structure of contrast changes in natural images: from sharp edges to textures
A. Turiel, N. Parga
We present a formalism that leads very naturally to a hierarchical description of the different contrast structures in images, providing precise definitions of sharp edges and othe…
cond-mat.stat-mech1998
Understanding multifractality: reconstructing images from edges
Antonio Turiel, Angela del Pozo
It has been recently proven that natural images exhibit scaling properties analogue to those of turbulent flows. These properties allow regarding each image as a multifractal objec…