OpenCV-Repackaged

This is the OpenCV Java API, repackaged into an AAR that you can add as a Gradle dependency to your Android Studio project. This is exactly the same thing that is in the /sdk/java folder of the OpenCV Android bundle.

Why would I want to use this?

To avoid the pain of having to download the OpenCV Android bundle, extract the Java library, and import it as a module in Android Studio. This bloats your git repository and makes it a pain to upgrade to a newer OpenCV version.

Installation Instructions

1. Open your FTC SDK Android Studio project

2. Open the build.gradle file for the TeamCode module:

   

3. At the bottom, add this:

   dependencies {
       implementation 'org.openftc:opencv-repackaged-bundled-dylibs:4.10.0-A'
    }

4. You can now use OpenCV just as you would as if you had manually imported the module, with one minor difference being you do not need to call any methods such as OpenCVLoader.initDebug() because the native library is automatically loaded in the background when the SDK boots.

Changelog:

v4.10.0-A

• OpenCV Android SDK updated to v4.10.0

v4.7.0-A

• OpenCV Android SDK updated to v4.7.0

v4.5.3-C

• Artifact name changed to opencv-repackaged-bundled-dylibs
• Native library is bundled with the AAR instead of being loaded dynamically.
  • The original reason for not bundling the native library was to reduce APK size for wireless deploy time, but that was something that it seems I cared about more than anyone else, and people often seem to have difficulty with setting it up properly for some reason
  • There have been multiple requests for 64-bit support, which would have made the dynamic loading from external storage even more complicated
• 64 bit support added

v4.5.3-B

• Don't use deprecated setGlobalWarningMessage(String msg) method

v4.5.3-A

• OpenCV Android SDK updated to v4.5.3

v4.1.0-C

• Specifically handle error case of failure to load 32-bit library when FTC Robot Controller app has already loaded another native library as 64-bit

v4.1.0-B

• Drastically improve error handling when loading native library

v4.1.0-A

• Initial release, based on OpenCV Android SDK v4.1.0