An adaptive thresholding algorithm based on edge detection and morphological operations for document images.
Renata Freire de Paiva NevesCleber ZanchettinCarlos Alexandre Barros MelloPublished in: ACM Symposium on Document Engineering (2013)
Keyphrases
- morphological operations
- document images
- thresholding algorithm
- edge detection
- line extraction
- mathematical morphology
- image enhancement
- gray scale
- document image analysis
- edge detector
- binary images
- multiscale
- document analysis
- structuring elements
- optical character recognition
- document image understanding
- noisy images
- input image
- image processing
- noise reduction
- document processing
- anisotropic diffusion
- historical documents
- document image retrieval
- page segmentation
- edge map
- printed documents
- signal to noise ratio
- scanned documents
- image analysis
- computer vision
- page layout
- scale space
- text lines
- word spotting
- color images
- noise removal
- digital libraries
- scanned document images