Dictionary Learning and Sparse Coding for Digital Image Forgery Detection.
Mohammed AlorainiLingdao ShaMehdi SharifzadehDan SchonfeldPublished in: Media Watermarking, Security, and Forensics (2019)
Keyphrases
- forgery detection
- dictionary learning
- sparse coding
- digital images
- sparse representation
- natural images
- image classification
- linear combination
- unsupervised learning
- sparse codes
- generative model
- image representation
- object category recognition
- group sparsity
- jpeg compression
- visual words
- image patches
- high dimensional
- computer vision
- feature vectors
- feature space
- multiscale