Random Spray Retinex: A New Retinex Implementation to Investigate the Local Properties of the Model

Author

Provenzi, Edoardo ; Fierro, Massimo ; Rizzi, Alessandro ; De Carli, Luca ; Gadia, Davide ; Marini, Daniele

Author_Institution

Dipt. di Tecnologie dell´´Informazione, Universita di Milano, Crema

Volume

16

Issue

1

fYear

2007

Firstpage

162

Lastpage

171

Abstract

In order to investigate the local filtering behavior of the Retinex model, we propose a new implementation in which paths are replaced by 2-D pixel sprays, hence the name "random spray Retinex." A peculiar feature of this implementation is the way its parameters can be controlled to perform spatial investigation. The parameters\´ tuning is accomplished by an unsupervised method based on quantitative measures. This procedure has been validated via user panel tests. Furthermore, the spray approach has faster performances than the path-wise one. Tests and results are presented and discussed

Keywords

filtering theory; image colour analysis; image resolution; 2D pixel sprays; local filtering behavior; random spray Retinex; unsupervised method; Filtering; Helium; Humans; Image sampling; Layout; Pixel; Psychology; Spraying; Testing; Visual system; Locality of color perception; Retinex; pixel sprays; Algorithms; Artificial Intelligence; Biomimetics; Color Perception; Colorimetry; Computer Simulation; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Models, Statistical; Pattern Recognition, Automated; Signal Processing, Computer-Assisted;

fLanguage

English

Journal_Title

Image Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7149

Type

jour

DOI

10.1109/TIP.2006.884946

Filename

4032825