Embedding Digital Watermarking Using Wavelet Transform

The growth of networked multimedia systems has magnified the need for image copyright protection. One approach used to address this problem is to add an invisible structure to an image that can be used to seal or mark it. These structures are known as digital watermarks. Watermarking has been increasingly recognized as a highly effective means of protecting the intellectual property rights associated with multimedia data. This paper, embedding watermarking in still image, this algorithm embedding watermark in large coefficients in high frequency subbands by using wavelet transform, the watermark in this algorithm is capable of surviving against the JPEG2000 compression; the watermark extracted using original image. The suggested technique applied to many images, and the results for this method is robust against extraction watermarking on the average 85-90% (in data payload 200 bits) and using lowpass, highpass filters and JPEG2000 compression.