Keyphrases
- post processing
- optical character recognition
- character recognition
- document images
- error correction
- edge detection
- text recognition
- gray level
- denoising
- recognition errors
- document processing
- thresholding method
- image thresholding
- preprocessing
- image segmentation
- printed documents
- image processing
- computer vision
- thresholding algorithm
- digital libraries
- character segmentation
- gray scale
- document image analysis
- scanned images
- search engine
- genetic algorithm