Keyphrases
- text extraction
- image data
- printed documents
- image features
- scanned images
- low quality
- image database
- text information
- image analysis
- image collections
- input image
- three dimensional
- web images
- image registration
- segmentation method
- ground truth
- test images
- text lines
- quality metrics
- information retrieval
- image regions
- text detection
- image classification
- edge detection
- lighting conditions
- textual information
- object recognition
- optical character recognition
- text retrieval
- degraded images
- binary images
- document processing
- image retrieval
- text recognition
- preprocessing
- inverse halftoning
- ocr systems