A character image enhancement method from characters with various background images.
Hideaki OzawaTom NakagawaPublished in: ICDAR (1993)
Keyphrases
- image enhancement
- edge detection
- histogram equalization
- color image enhancement
- image analysis
- enhanced image
- segmentation method
- gamma correction
- image contrast enhancement
- homomorphic filtering
- fully automatic
- contrast enhancement
- pattern recognition
- image processing
- image contrast
- transfer function
- region of interest
- image restoration
- image data
- image retrieval
- total variation
- bit rate
- dynamic range compression
- multiscale
- color restoration
- machine learning