Handwritten Boolean Algebra Derivation Recognition and Error Identification

Boolean algebra is an important study for the analysis and simplification of logic circuit. There are many methods that can simplify Boolean algebra expression quickly. However, simplification Boolean algebra expression by applying Boolean algebra laws was commonly taught in the class. The teacher or student must spend a lot of time on checking the correctness of this method line by line with bare eyes. This paper proposed the software to helps them by automatically find error locations from image of handwritten Boolean expression derivation. The image was segmented into the lines before characters would be extracted from each line. After that, the characters were recognise and rewriting into the text form. The expression of each line was simplified by the system, then it will be compared to the next line. Finally, the system returns the result in format of input image overlayed with a result from finding error process.