A daubechies DWT based image steganography using smoothing operation.
Vijay Kumar SharmaDevesh Kumar SrivastavaPratistha MathurPublished in: Int. Arab J. Inf. Technol. (2020)
Keyphrases
- wavelet transform
- complex wavelet transform
- discrete wavelet transform
- wavelet coefficients
- wavelet decomposition
- low pass
- multiresolution
- image compression
- wavelet domain
- subband
- jpeg compression
- image coding
- smoothing methods
- wavelet packet transform
- high frequency
- smoothing algorithm
- image smoothing
- wavelet filters
- similarity measure
- lifting scheme
- image watermarking
- image filtering
- discrete cosine transform
- low frequency