Thai OCRThai OCRusingusing

Template Matching AlgorithmTemplate Matching Algorithm

By Manoch Pracha

Assignment 1Assignment 1

Algorithm

Load the test bitmap picture Detect Lines and Characters

Y-Axis profile for detecting lines Line locations

Nbr-8 for labeling each characters Labels (Blob Coloring)

Finding bounding box for each character Compute the center of mass for each character Sort the character (center bottom top) Feed the sorted data to Template matching to

recognize each character

3 line's Thai character detection

Using center of mass to determine the character detecting order : center, bottom, top respectively.

Detect Lines and Characters

Template Matching

Problems and Errors

Single character, more than one “label” “i” “:” “%” “ฐ” “แ” “ะ”

Similarity “ด” “ค”