Encrypted JPEG image retrieval using histograms of transformed coefficients.
Peiya LiZhenhui SituPublished in: APSIPA (2019)
Keyphrases
- image retrieval
- color histogram
- image compression
- relevance feedback
- wavelet coefficients
- image database
- bit plane
- image coding
- linear combination
- compression algorithm
- expert group
- generalized gaussian density
- image content
- visual features
- discrete cosine transform
- wavelet subbands
- dct coefficients
- low level features
- low bit rate
- compressed domain
- coding method
- jpeg images
- lossless compression
- jpeg compression
- compressed images
- lossless coding
- image representation
- cbir systems
- spatial information
- encryption algorithm
- coded images