Transformation of Images Using Wavelet Transform For Image Watermarking of Text in Binary Images

Abstract

DWT and DCT compress the image and generates a decomposed image use of those decomposed band has been demonstrated in this paper of watermarking. Image watermarking is important for transmition of secret data over communication channel.DWT ensures the security, however text hiding is slightly different and uses the transformation the other way round and hence enhances the complexity and also the dissolving capacity of the cover image as now the text data range gets equivalent to the image data range hence it gets settle down easily, on the other hand the secrete image still uses the dwt technique to get its range altered and hence the images gets settled down easily without revealing any information.