Improvement in degree of visual confirmation difficult of data hiding which makes coding multi-value key picture

Abstract

The data hiding technique based on wavelet multi-resolution analysis (MRA) is already proposed. This research aims at improvement in the degree of key picture visual confirmation difficult in the circulation picture created using data hiding based on MRA. The concealment method which made the key picture the concealment method based on the steganography technology which is a kind of data hiding technology, and the multi-value picture is proposed. Moreover, it asks for a wavelet suitable for data hiding of a picture.