Watermarking for still images using the human visual system in the DCT domain.
O-Hyung KwonYoung-Sik KimRae-Hong ParkPublished in: ISCAS (4) (1999)
Keyphrases
- human visual system
- dct domain
- image quality
- human observers
- just noticeable difference
- jpeg images
- visual quality
- image data
- wavelet domain
- input image
- visual information
- image quality assessment
- transform domain
- peak signal to noise ratio
- lossy compression
- ground truth
- image classification
- compressed images
- spatial domain
- image features
- image retrieval
- digital images
- post processing
- image blocks
- dct coefficients
- digital video
- high quality
- reference frame
- error diffusion
- contrast enhancement
- test images
- image regions
- object recognition
- video coding
- frequency domain
- copyright protection
- multiresolution
- image watermarking
- feature extraction