Wavelets and Wavelet Transform

Wavelet transforms are the most powerful and the most widely used tool in the field of image processing. Wavelet transform has received considerable attention in the field of image processing due to its flexibility in representing non-stationary image signals and its ability in adapting to human visual characteristics. Wavelet transform is an efficient tool to represent an image. The wavelet transform allows multiresolution analysis of an image. The aim of the transform is to extract relevant information from an image. A wavelet transform divides a signal into a number of segments, each corresponding to a different frequency band.