Fractal descriptors in the Fourier domain applied to color texture analysis.
The present work proposes the development of a novel method to provide descriptors for colored texture images. The method consists of two steps. First, we apply a linear transform in the color space of the image aiming at highlighting spatial structuring relations among the color of pixels. Second, we apply a multiscale approach to the calculus of fractal dimension based on Fourier transform. From this multiscale operation, we extract the descriptors that are used to discriminate the texture represented in digital images. The accuracy of the method is verified in the classification of two color texture datasets, by comparing the performance of the proposed technique to other classical and state-of-the-art methods for color texture analysis. The results showed an advantage of almost 3% of the proposed technique over the second best approach.
Instituto de Física de São Carlos (IFSC), Universidade de São Paulo, Av. Trabalhador São Carlense, 400, CEP 13560-970 - São Carlos, São Paulo, Brazil.
João Batista
JB
Florindo
Odemir Martinez
OM
Bruno
D000465:Algorithms; D003116:Color; D003124:Colorimetry / Q000379:methods*; D005583:Fourier Analysis; D017709:Fractals; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*