A simple implementation of rectangle detector on Android using OpenCV.

Add it in your root build.gradle at the end of repositories:

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

Add the dependency in your module's build.gradle:

dependencies {
    implementation "com.github.smartbank-inc:android-rectangle-detector:${latest_version}"
}

Android 8.0+ (API Level: 26+)