Self-embedding fragile watermarking based on DCT and fast fractal coding.
Xuanping ZhangYangyang XiaoZhongmeng ZhaoPublished in: Multim. Tools Appl. (2015)
Keyphrases
- fragile watermarking
- fractal coding
- image blocks
- image compression
- discrete cosine transform
- fractal image coding
- compression ratio
- fractal encoding
- low bit rate
- image coding
- dct coefficients
- vector quantization
- coding method
- quadtree
- transform domain
- binary images
- dct domain
- digital images
- subband
- filter bank
- compression algorithm
- texture image retrieval
- texture mapping
- watermarking algorithm
- blocking artifacts
- watermarking technique
- compressed images
- coding scheme
- test images
- wavelet transform
- image processing