jason9075

package com.jason9075.myopencv;

public class ImageInfo {
    private final int width;
    private final int height;

    public ImageInfo(int width, int height) {
        this.width = width;
        this.height = height;
    }

jason9075

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    binding = ActivityMainBinding.inflate(getLayoutInflater());
    setContentView(binding.getRoot());

    setSupportActionBar(binding.toolbar);

    NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);

jason9075

public class NativeLib {

    static {
        System.loadLibrary("myopencv");
    }

    public native String stringFromJNI();

    public native void toGrey(Bitmap bitmapIn, Bitmap bitmapOut);
}

jason9075

extern "C" JNIEXPORT void JNICALL
Java_com_jason9075_myopencv_NativeLib_toGrey(
        JNIEnv *env, 
        jobject, 
        jobject bitmapIn, 
        jobject bitmapOut) {
    Mat src, greyOut;
    bitmapToMat(env, bitmapIn, src, false);
    cvtColor(src, greyOut, CV_BGR2GRAY);
    matToBitmap(env, greyOut, bitmapOut, false);

jason9075

cmake_minimum_required(VERSION 3.18.1)

set(OpenCV_DIR "/home/jason9075/Documents/OpenCV-android-sdk/sdk/native/jni")

find_package(OpenCV REQUIRED)

project("myopencv")

add_library(myopencv
            SHARED