Perceptual Hashing of Color Images Using Interpolation Mapping and Non-negative Matrix Factorization.
Qiu-Yu ZhangQi-Yan DouZi YangYan YanPublished in: J. Inf. Hiding Multim. Signal Process. (2017)
Keyphrases
- negative matrix factorization
- color images
- matrix factorization
- sparse representation
- document clustering
- nonnegative matrix factorization
- principal component analysis
- spectral clustering
- color filter array
- constrained least squares
- databases
- machine learning
- image processing
- pattern recognition
- wordnet
- human visual system