Novel DCT and DWT based Watermarking Techniques for Digital Images.
Shikha TripathiR. C. JainV. GayatriPublished in: ICPR (4) (2006)
Keyphrases
- digital images
- watermarking technique
- image watermarking
- digital watermark
- digital watermarking
- watermark detection
- lossy compression
- copyright protection
- jpeg compression
- discrete cosine transform
- jpeg images
- spread spectrum
- watermarked image
- discrete wavelet transform
- image blocks
- digital image watermarking
- image authentication
- transform domain
- image compression
- dct coefficients
- geometric distortions
- low frequency
- pattern recognition
- compressed domain
- frequency domain
- multiscale
- dct domain
- information hiding
- denoising
- watermarking method
- multiresolution
- digital libraries
- robust watermarking