Embedding color image watermark in color image based on two-level DCT.
Qingtang SuGang WangShaoli JiaXiaofeng ZhangQiming LiuXianxi LiuPublished in: Signal Image Video Process. (2015)
Keyphrases
- color images
- watermark detection
- watermarking algorithm
- dct coefficients
- color information
- color space
- color correction
- robust image watermarking
- digital images
- color components
- digital watermark
- watermark embedding
- watermarked image
- dct domain
- watermarking technique
- spread spectrum
- watermarking scheme
- gray scale
- spatial domain
- discrete cosine transformation
- jpeg compression
- digital watermarking
- image watermarking
- image processing
- discrete cosine transform
- copyright protection
- transform domain
- color texture
- color image segmentation
- color channels
- color quantization
- grayscale images
- cover image
- data hiding
- jpeg images
- signal processing
- digital image watermarking scheme
- watermarking method
- motion estimation
- watermark extraction
- wavelet domain
- image authentication
- information hiding
- image compression
- computer vision
- image blocks
- secret data
- image processing operations
- data embedding
- denoising
- secret message
- frequency domain
- cross correlations