Modifying Randomized Transform Image Steganography Using IDWT

Abstract

The rapid developments in communications system and networks of the internet have led to propose a new algorithm to hide the image over the internet network. The new approach hides the image or text or voice or message to be transmitted. This message is hidden within image with the use of a secret key. The secret key is a fusion of two images after they are compressed in 2D discrete wavelet transform for the second level (L2) and third level (L3). After merge of the two images, the inverse discrete wavelet transform is considered as a final result of secret key with the cover image to hide the original image as well as the data transferred under this image.
The results obtained in this proposed algorithm depends on the hidden image and the secret key is generated that it can restore the original image after receipt without losing any information of image by recipient in the network.