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A Novel Hybrid Discrete Cosine Transformation and Visual Cryptographic Technique for Securing Digital Images.
Quist-Aphetsi Kester
Laurent Nana
Anca Christine Pascu
Sophie Gire
Jojo Moses Eghan
Nii Narku Quaynor
Published in:
UKSim (2015)
Keyphrases
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digital images
discrete cosine transformation
spatial domain
signal processing
visual information
image compression
dct coefficients
copyright protection
gray level
smart card
human visual system
compression algorithm
black and white
adaptive quantization