An android application for validating images of OMR sheets before they are sent for processing.
Note: This repository uses androidomr as a foundation code. Thus substantial credits to udayraj123.
Hits Since 8 Apr '19:
androidomr is an Android document detection library built on top of OpenCV. It scans documents from camera live mode and allows you to adjust crop using the detected 4 edges and performs perspective transformation of the cropped image.
It works best with a dark background.
You can browse the JavaDocs for the latest release
This library is available in JitPack.io repository. To use it, make sure to add the below inside root build.gradle file
allprojects {
repositories {
mavenCentral()
maven { url "https://jitpack.io" }
}
}
and add the repository's url to the app's build.gradle file.
dependencies {
compile 'com.github.udayraj123:androidomr:1.0.6'
// Other dependencies your app might use
}
Out of the box it uses OpenCV.
- Start startActivityForResult from your activity
startActivityForResult(new Intent(this, ScanActivity.class), REQUEST_CODE);
- Get a file path for cropped image on onActivityResult
String filePath = data.getExtras().getString(ScanConstants.SCANNED_RESULT);
Bitmap baseBitmap = ScanUtils.decodeBitmapFromFile(filePath, ScanConstants.IMAGE_NAME);
- Display the image using TouchImageView
<com.udayraj.androidomr.view.TouchImageView
android:id="@+id/scanned_image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="center" />
Versioning policy
We use Semantic Versioning 2.0.0 as our versioning policy.
Bugs, Feature requests
Found a bug? Something that's missing? Feedback is an important part of improving the project, so please open an issue.
Code
Fork this project and start working on your own feature branch. When you're done, send a Pull Request to have your suggested changes merged into the master branch by the project's collaborators. Read more about the GitHub flow.