By joining the principle of digital watermarking in the frequency domain is the first of the original signal (voice of one-dimensional signal, image, two dimensional signal) transforming to the frequency domain, commonly used transformation General DWT and DCT, DFT, WP, and Fractals. Then added a watermark information signal frequency-domain inverse transform (IDWT, Republic IDCT, DFT, and WP), the received signal with watermark information. Has passed the tests.




File list:
pic393.m