Keyphrases
- document images
- information retrieval
- document processing
- document analysis
- energy minimization
- image binarization
- information retrieval systems
- document collections
- energy consumption
- retrieval systems
- text documents
- document retrieval
- video matting
- grayscale images
- document clustering
- web documents
- vector space model
- tf idf
- edge detection
- energy saving
- gray scale images
- optical character recognition
- preprocessing
- digital libraries
- printed documents
- document content
- character segmentation
- keywords
- database