Synthetic Aperture Radar imagenon linear enhancement algorithm based on NSCT transform

Synthetic Aperture Radar imagenon linear enhancement algorithm based on NSCT transform

Due to the imaging mechanism, Synthetic Aperture Radar (SAR) images are susceptible to speckle noise, which affects radar image interpretation. So image denoising and enhancement are important topics of improving SAR image performance. A nonlinear image enhancement algorithm based on nonsubsampled contourlet transform (NSCT) is proposed in this paper.The image is decomposed into coefficients of different scales and directions through non sub sampled contour let transform