OCR Based Image Equation Calculator

Abstract: This paper introduces the design and implementation of an OCR based equation solver in MATLAB which can recognize the formula captured by a mobile phone camera and then computes and displays the result in MATLAB. This application enables a faster calculation by avoiding inputting the formula to some device. In this paper we demonstrate equation solver that takes a camera image of an equation and displays the solution. The papers we referred to were capable of solving simple arithmetic equations (addition, subtraction, multiplication and division). We modified the approach and are able to solve systems of linear equations of up to three variables.

Keywords: Binarization, Bounding Box, Rotation, OCR, Calculator.