Rahman, Mohammad ZahidurAlom, Md. ZahangirKhan, Md Nazrul HasanSiddiqui, FaizanDas, Amit2014-05-122014-05-1220142014-04ID 10101003ID 11101073ID 10101020http://hdl.handle.net/10361/3222Cataloged from PDF version of thesis report.Includes bibliographical references (page 54).This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science and Engineering, 2014.This thesis aims to detect mobile recharge card pin number portion by doing image processing. It works with Tesseract Engine and tess-two library for OCR operation. After detection, it extracts the OCRed text which is the pin number of recharge card and then it sends request to the respective mobile operator for recharging balance. We have built an android based cell phone application so that the thesis can be worthy of real life experience.54 pagesenBRAC University thesis are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.Computer science and engineeringThesis