Image compression using JPEG with reduced blocking effects via adaptive down-sampling and self-learning image sparse representation.
Sekineh Asadi AmiriHamid HassanpourPublished in: Multim. Tools Appl. (2018)
Keyphrases
- sparse representation
- image classification
- image representation
- test images
- reconstruction error
- image data
- sparse coding
- dictionary learning
- multiscale
- piecewise smooth
- single image
- input image
- orthogonal matching pursuit
- sparse coefficients
- image segmentation
- image retrieval
- image features
- face recognition
- sparse reconstruction
- regularized least squares
- compressed sensing
- image patches
- basis vectors
- similarity measure
- bag of words
- dimensionality reduction
- image compression
- object detection
- compression ratio
- probabilistic model
- compressive sensing
- object recognition
- joint optimization
- image quality
- super resolution