Hamid Reza Shahdoosti

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An ideal fusion method preserves the Spectral information in fused image and adds spatial information to it with no spatial distortion. The PCA is a well-known pan-sharpening approach widely used for its efficiency and high spatial resolution. However, it can distort the spectral characteristics of the multispectral images. In this paper, we present a new(More)
A novel hybrid algorithm based on a genetic algorithm and particle swarm optimization to design a fuzzy neural network, named self-organizing fuzzy neural network based on GA and PSO (SOFNNGAPSO), to implement Takagi–Sugeno (TS) type fuzzy models is proposed in this paper. The proposed algorithm, as a new hybrid algorithm, consists of two phases. A tuning(More)
This paper presents an automated algorithm for image enhancement. A novel parametric indices of fuzziness (PIF) is introduced, which serves as the optimization criterion of the contrast enhancement procedure. The proposed PIF comprises the Sugeno class of involutive fuzzy complements and the first order fuzzy moment of the image. The PIF as the measure of(More)
In this paper, an image denoising method is proposed which uses sparse un-mixing by variable splitting and augmented Lagrangian (SUnSAL) classifier in the nonsubsampled shearlet transform (NSST) domain. To this aim, the noisy image is decomposed into various scales and directional components using theNSSTand then the feature vector for a pixel is(More)
The component substitution (CS) scheme is one of the most efficient models used by different image fusion algorithms when merging multispectral and panchromatic images, acquired with different spatial and spectral resolutions. In this letter, a new CS-based image fusion method is proposed to reduce color distortion. First, multispectral images are clustered(More)
The main goals of denoising are to improve the signal-to-noise-ratio (SNR) and to preserve the informative features such as edges and textures. Aiming at reducing Gibbs-type artifacts, several researchers have combined wavelet-like transforms such as curvelets with total variation or diffusion methods. In this paper, a ripplet formulation of the total(More)