BASIC DIGITAL WATERMARKING TECHNIQUE USING DCT WITH ADJUSTMENT METHOD

摘要

In this paper we are discussing about the watermarking method using adjustment method. Watermarking is the method of embedding the information into other signal. First we capture the audio data and then it is sampled using a sampling frequency of 22050Hz. The sampled audio data is converted into the DCT coefficients. The watermark message is watermarked into the DCT coefficient of the audio data. An adjustment method is carried out in order to increase the accuracy of the watermarked audio signal. We finally extract the message from the watermarked audio signal after performing IDCT to the watermarked signal.