method: Receipt Info Extracting Task2 letter-recognizing2019-04-22

Authors: Shi Jiachen Liang Yuhao Ma Pingchuan

Description: for each part
ignoring those parts which is too large or too little in height, which may link to bar-code or black margin and noise point or redundant lines
after this, select each rectangle area in the image as an new one and recognize letters using the lib pytesseract