A New Hybrid DCT and Contourlet Transform Based JPEG Image Steganalysis Technique.
Zohaib KhanAtif Bin MansoorPublished in: SCIA (2009)
Keyphrases
- discrete cosine transform
- dct coefficients
- image compression
- jpeg images
- subband
- coded images
- dct domain
- low bit rate
- adaptive quantization
- karhunen loeve transform
- discrete cosine transformation
- compression standards
- compressed domain
- filter bank
- compressed images
- wavelet coding
- contourlet transform
- transform domain
- quantization table
- wavelet transform
- jpeg compression
- image resizing
- multiresolution
- image denoising
- spatial domain
- compression algorithm
- run length coding
- denoising
- image coder
- low frequency
- frequency domain
- image coding
- image authentication
- blocking artifacts
- texture retrieval
- digital watermark
- image quality
- multiscale
- rate distortion
- coding method
- error concealment
- compression scheme
- visual quality
- transform coding
- bit rate
- bit plane
- image processing
- step size
- human visual system
- wavelet coefficients
- huffman coding
- compression ratio