Image-adaptive watermarking based on warped discrete cosine transform.
Han-Seung JungNam Ik ChoSang Uk LeePublished in: ISCAS (3) (2002)
Keyphrases
- discrete cosine transform
- input image
- image blocks
- image data
- blocking artifacts
- jpeg images
- coded images
- discrete fourier transform
- image compression
- projection onto convex sets
- multiscale
- digital images
- dct coefficients
- watermarking technique
- dct domain
- image segmentation
- transform domain
- test images
- image interpolation
- pixel values
- filter bank
- high resolution
- watermark detection
- projections onto convex sets
- compressed images
- similarity measure