Multi Secure and Robustness for Medical Image Based Steganography Scheme

Steganography means hiding private or secret audio within a carrier in invisible manner. In this paper we are working on avideo steganography algorithm based on Haar Integer Wavelet Transforms (IWT) and extraction in luminance and chrominance (YCbCr) components of the video files. In this approach, the cover-video is divided into YCbCr frames and the audio in binary form is embedded into the IWT coefficients. The embedded audio is extracted from stego-video using the reverse process of data hiding. Haar wavelet transform is applied to get the low frequency sub-band in an image to hide data. The frequency sub-bands are (LL, LH, HL and HH).The work of various researchers is discussed about video steganography and their techniques for embedding and extraction of data. With the advancement of technology and multimedia information, Videos and digital images are increasing very quickly. A lot of information can be stored in video files. It contains number of frames played over a period of time. .Information can be stored in any or number of frames. Moreover, Attacker or Human eye cannot detect the presence of message in video because video frame is only visible for a fraction of time.