నైరూప్య

Watermarked Wavelet Transforms

Raji Pandurangan* and E. Logashanmugam

For day today life photography is becoming very popular. In every fields of work, official or personal, the task of securing the image is challenging against the advancement of the technology. The concept of watermarking gives comfortable solution for the copyright protection. Different Wavelet transforms are considered with its mean square error and peak signal to noise ratio. The Haar, Biorthogonal, Daubechies wavelets are used for simulation to find better peak signal to noise ratio. Watermarking is done on these transforms and its robustness is found for the color image.