Unsupervised refinement of color and stroke features for text binarization.
Anand MishraKarteek AlahariC. V. JawaharPublished in: Int. J. Document Anal. Recognit. (2017)
Keyphrases
- automatically extracted
- low level
- feature vectors
- lexical features
- invariant features
- machine learning
- feature set
- color images
- feature space
- image features
- co occurrence
- unsupervised learning
- unsupervised feature selection
- semi supervised
- color space
- semantic information
- image regions
- keywords
- feature extraction
- additional features
- text recognition
- image processing