Android GradesApp OMR Exam Scanner

GradesApp OMR software is a complete replacement alternative to costly OMR scanners. OMR sheet scanner Multiple choice question with Android + OpenCV OMR Recognize bubble sheet, exam, multiple choices question using Android + OpenCV. Features: – Input correct answers – Scan bubble sheet – Show results, highlight correct, incorrect answers Tools Used: Firebase Firestore, OpenCV Image Library, Java, Android Studio.

GetGrades uses firebase firestore and local sqflite to save tests.

Optical mark recognition (optical mark reading or OMR) is the process of capturing human-marked data from document forms such as surveys and tests. They are used to read questionnaires, multiple choice examination paper in the form of lines or shaded areas.

With this application, you will be able to take exam reading for any of the optical form templates. 10 Question 20 Question 30 Question

Supported optical form reading templates

1. Template



2. Template



3. Template

OpenCV was built to provide a common infrastructure for computer vision applications and to accelerate the use of machine perception in the commercial products. Being a BSD-licensed product, OpenCV makes it easy for businesses to utilize and modify the code. The library includes a comprehensive set of both classic and state-of-the-art computer vision and machine learning algorithms. These algorithms can be used to detect and recognize faces, identify objects, classify human actions in videos, track camera movements, track moving objects, extract 3D models of objects, produce 3D point clouds from stereo cameras, stitch images together to produce a high resolution image of an entire scene, find similar images from an image database, remove red eyes from images taken using flash, follow eye movements, recognize scenery and establish markers to overlay it with augmented reality, etc