[PDF] Top 20 An Improved and Robust DCT Based Digital Image Watermarking Scheme

... creation. Digital watermarking provides a viable solution to protect copyright and authenticate the ownership of an intellectual ...new DCT based additive watermarking scheme ... See full document

... & robust image watermarking algorithm based on DCT odd/Even technique to embed watermark (logo) into cover image (DubaiSat-1 satellite image) for the purpose of ... See full document

... Online watermarking of digital images is successful in avoiding offline ...time watermarking is speed and it can be achieved by using a hardware which is dedicated for this very purpose ...watermark ... See full document

... Imperceptibility property must be preserved by watermarking scheme. In order to compare the cover image and watermarked image peak signal to noise ratio (PSNR) is used. The comparison of the ... See full document

... DFT based approach fourier coefficients have two components-phase and ...DFT based algorithm are robust to translation, rotation and scaling ...phase based watermarking are relatively ... See full document

... a scheme for image watermarking based on random selection of 2 middle-band coefficients of DCT ...using DCT frequency transform in different blocks of the ...block based ... See full document

... A digital image watermarking algorithm based on the secondary LSB replacement, DCT-DWT and SVD which allows near lossless recovery of the original host ...host image to a high ... See full document

... the watermarking of still images for copyright protection. The watermarking information that will be used includes handwritten signatures and mobile phone ...The watermarking information will be ... See full document

... for digital water marking of images is proposed in [7]. “Digital watermarking in the work presented was considered particularly on a satellite image by making use of the DCT algorithm ... See full document

... encrypted image was then transmitted to different ...received image, the process of fingerprint embedding was conducted on the coefficients of discrete cosine transform ...host image in a ... See full document

... Audio Watermarking technique involves the embedding of secret information (watermark) into a host audio ...the digital contents, broad understanding of the existing methods is very ...Several ... See full document

... Digital watermarking schemes can be categorized as “visible” and “invisible” ...not robust against common image processing ...and robust than visible watermarks. In invisible ... See full document

... DCT based image watermarking [19-25] is more robust as compared to the spatial domain watermarking ...techniques. DCT is a fast transformation technique provides excellent ... See full document

... (DCT): DCT like a Fourier Transform, it represents data in terms of frequency space rather than an amplitude ...away. DCT based watermarking techniques are robust compared to ... See full document

... wavelet based image adaptive watermarking ...the image fidelity. In order to avoid perceptual degradation of image, the watermark insertion is carefully performed while using ... See full document

... DWT-DCT based audio watermarking scheme is proposed where the watermark bits are embedded in the low-frequency components by adaptive quanti- zation ...of DCT are explored for ... See full document

... of digital content invites new challenges for securing the distribution of digital ...unique, robust copyright protection scheme for ...this watermarking algorithm, the video frames are ... See full document

... Abstract—Digital watermarking techniques have been developed to protect the copyright of multimedia objects such as text, audio, video, ...new digital watermarking algorithm with gray ... See full document

... a digital watermark, although in some contexts the phrase digital watermark means the difference between the cover signal and the watermarked ...watermarked digital signal is transmitted or stored, ... See full document

... host image is not distorted and generates robust watermarked image having good PSNR ...DWT based digital watermarking using computational intelligence ... See full document