Preprocessing and presorting of envelope images for automatic sorting using OCR.
Andy C. DowntonGraham LeedhamPublished in: Pattern Recognit. (1990)
Keyphrases
- preprocessing
- image database
- image data
- post processing
- fully automatic
- image features
- image retrieval
- image analysis
- ground truth
- image classification
- test images
- image registration
- input image
- three dimensional
- image collections
- segmentation method
- edge detection
- preprocessing stage
- object recognition
- automatic annotation
- semi automatic
- feature points
- image set
- rigid body
- pixel values
- gray scale images
- image matching
- image regions
- keypoints
- segmentation algorithm
- similarity measure
- preprocessing steps
- image processing
- multiple images
- image annotation
- light source
- image segmentation