WATERMARKING IN IMAGE USING SLANTLET TRANSFORM

A watermarking scheme based on slantlet transform, an orthogonal discrete wavelet transform with two zero moments and with improved time localization, is presented in this paper. The watermark is embedded into mid band frequencies of slantlet coefficients in the transform domain, which leads to very small distortion and guarantees the visual quality of the watermarked image. The performance of the proposed algorithm is compared with embedding watermarking system using wavelet transformation the result show promising performance of the proposed system where the increasing in PSNR is approximately 20 dB.