Abstract. Urdu Language is written in Nastalique writing style, which is highly cursive, context sensitive and is difficult to process as only the last character in its ligature resides on the baseline. This paper focuses on the development of OCR using Hidden Markov Model and rule based post-processor. The recognizer gets the main body (without diacritics) as input and recognizes the corresponding ligature. Accuracy of the system is 92.73% for printed and then scanned document images at 36 font size.
Javed and Hussain REF , focused on the development of a ligature based OCR system that input the main body without the diacritics and recognizes the related ligatures.
Segmentation Based Urdu Nastalique OCR
CIARP
Computer Science