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Automatic number Plate Recognition (Image analysis technique (Use open CV…
Automatic number Plate Recognition
Image analysis technique
Use open CV to find potential number
collect all positive and -ve
train classifier using haar
detect number plate
extract character
use OCR tesseract
tensorflow
Algorithm
Number Plate localisation
Pre-processing
Aspect ratio profiling
finding characteristics to indicate that the object is a number plate.
De-skewing number plate.
Number Plate orientation and sizing
Normalisation
refining the characters into a block containing no extra space (pixels) in all four sides of the characters.
Character segmentation
locates the separate alpha numeric characters on a license plate.
look for characters of equal color and equidistance, with similar font structures to break apart each individual character
separate each letter or number and processed by optical character recognition(OCR) algorithms
Syntactical/Geometrical analysis
Optical character recognition
Techniques
Pre-processing
Character recognition
Post-processing
Application-specific optimisations
Application
book scanning
Defeating CAPTCHA anti-bot systems
Data entry for business documents
Automatic number plate recognition
