An algorithm for road enhancement in SAR images using wavelet transform

Abstract

Image denoising and enhancement plays an important role in the field of Synthetic Aperture Radar (SAR) imagery. The geographical features detection applications such as road detection are very demanding. The objective of image enhancement is to improve the visibility of lowcontrast features while suppressing the speckle. It improves the visible quality of the image. Image has locally varying statistics, has different edges and smoothness in it. Speckle reduction can be done on an image by wavelet analysis. Wavelet gives a superior performance in speckle reduction due to properties such as sparsity and multi resolution.