Detecting Hidden Messages Using Image Power Spectrum.
Palak K. AminK. P. SubbalakshmiPublished in: ICIP (1) (2007)
Keyphrases
- power spectrum
- frequency domain
- image data
- input image
- image features
- natural images
- autocorrelation function
- multiscale
- frequency analysis
- image segmentation
- spectral estimation
- power spectral
- image representation
- signal noise ratio
- pixel values
- density function
- edge detection
- feature extraction
- high resolution
- multiresolution
- similarity measure