Abstract: The rapid growth of the internet increases access to multimedia data tremendously. Due to its growth and availability of multimedia computing facilities, the enforcement of multimedia copy write protection becomes an important issue. Digital content can be reproduced, without loss of quality but they may also be easily modified and sometimes imperceptibly. In many contexts, any alteration of image, audio, video data must be detected. Therefore, there need some works to develop security systems to protect the content of digital data. Digital watermarking is viewed as an effective way to detect content users from illegal distributing. There are research challenges about this area of research that still needs to be solving such as imperceptibility, robustness, security in the images. The objective of this study are 3-fold to investigate the strength and limitations of current watermarking schemes, to design and develop new schemes to overcome the limitations and to evaluate the new schemes using application scenarios of copyright protection, tamper detection and authentication. We focus on geometrically robust watermarking and semi-fragile watermarking for digital images. The proposed hybrid schemes that combine the strength of both robust and semi-fragile watermarks are studied. The proposed method which operates in hybrid wavelet domain, embeds information in the LH blocks of the wavelet transform of the image. After embedding, the watermark is adapted to the image by exploiting the masking characteristic of human visual system thus, showing the invisibility of watermark. By knowing the properties of embedding sequence, the mark can be reliably extracted without resorting to the original uncorrupted image.