Compression-unimpaired batch-image encryption combining vector quantization and index compression.

Tzungher Chen Chang-Sian Wu

Published in: Inf. Sci. (2010)

Keyphrases

vector quantization
image compression
image encryption
vector quantizer
compression ratio
compression algorithm
authentication scheme
codebook design

wavelet transform
transform coding
reconstructed image
image processing
reduced complexity
distortion measure
security analysis

wireless communication
discrete cosine transform
subband
lossless compression
bit allocation
image coding
low bit rate

secret key
frequency domain
wireless networks
image reconstruction
progressive transmission
smart card
finite state vector quantization