Data hiding techniques based on Discrete Wavelet Transform (DWT) and Stationary Wavelet Transform (SWT)

ABSTRACT Steganography is employed for “invisible” communication. Its purpose is to take care of secret communication between 2 parties. In Steganography secret data is embedded into a multimedia system carrier it's going to be image, video or audio etc. during this paper steganography is image steganography that's carrier and secret data each square measure pictures. Here cowl image is color image and secret image is grey scale image. during this projected technique cowl image is color image thus initial color planes square measure separated and so extracts either separate wave remodel (DWT) or Stationary wave remodel (SWT) coefficients of each the B plane of canopy image and secret image. then these 2 extracted constant values square measure embedded by fusion technique. Then stego image is obtained. Here different wave families square measure used for perfecting the visual impact of the stego image and hardiness against the varied attacks.