ABSTRACT
Ridgelet transform is a new representation method of an image, which mainly includes two procedures: Radon transform and Wavelet Transform (WT), as shown in Formulas (1) and (2). In this paper, the improvement of ridgelet transform is proposed for image enhancement:
R f x t df R( , ) ) ( ( ) si ( ) ) ,xθ δt x θ x ncos −∫ 1 22 (1) where θ π[ , ],0 2 t R∈ and δ is the Dirac function.
