ma-pe / react-native-opencv

OpenCV Bindings for React Native (Currently in progress)

react-native-opencv

Currently being developed :)

React Native Bindings for openCV. Yet there are no React Native bindings.

Though you can already use this library to manage your OpenCV dependencies for your native code. You will then be able to use the framework in your native code.

Integrate OpenCV into iOS

1. Add this lib to your project: yarn add https://github.com/ma-pe/react-native-opencv#master

2. Add the OpenCV framework to your .xcodeproject's framework searchpaths (Build Settings / Framework Search Paths): ${PROJECT_DIR}/../node_modules/react-native-opencv/ios/Frameworks

I'd like to recommend these tutorials for OpenCV / Objective-C starters: OpenCV iOS¶

Integrate OpenCV into Android

1. Add this lib to your project: yarn add https://github.com/ma-pe/react-native-opencv#master

2. Import OpenCV module in Android Studio (File / New / Import Module): /../node_modules/react-native-opencv/android/openCVLibrary340

3. Configure Module as dependency: File / Project Structure / app / Tab: Dependencies / + / Module Dependency / openCVLibrary340

4. Change app's build.gradle: implementation project(':openCVLibrary340') to compile project(':openCVLibrary340')

5. Copy the contents of /../node_modules/react-native-opencv/android/app into ./app (those are the actual android binary files that are required).

You are good to go.

react-native-opencv's Issues

Typical Use Cases

In order to have an idea, what the API may look like, I'd like to know what are the typical use cases you want to achieve using opencv.

For example:

• Grayscale a remote-image and use it in react-native

I can't guarantee, that the api will cover all of these use cases shortly, but I promise to take them into consideration.

Connect opencv with react native

Hi Michel,

Do you have an example where you use the android camera with opencv on react native?

Current Development and contributions

I saw some other questions over the last few months about the status of this project but I haven't seen any recent activity. Is this project currently under development? And is there anything I can do to help you get this out?

Upgrading react-native-opencv from 3.4 core to 4.5.3 (latest)

Hello Malte,
I've downloaded your RN pluggin and I've noticed it uses an old realease of OpenCV (i.e. v3.4).

In attempt to contribute with you source code, I've started debug and understand the pieces of it and how would I replace 3.4 with 4.5.3(latest release)

Thus, I've downloaded Android-SDK, from OpenCV official sources https://opencv.org/releases/
Then I've imported JAVA module libs, and added dependencies. Everything was done through Android Studio.

Now, I got lost/stuck at the amends I have to do in your RN plugin in order to fully upgrade OpenCv core.

How can I upgrade your pluggin with OpenCV 4.5.3?

Best wishes,
I