Lite

[GreatValueGreatView]

android-demo-app/HelloWorldApp/app/src/main/java/org/pytorch/helloworld/MainActivity.java

Lines 31 to 69 in 8e2700a

	setContentView(R.layout.activity_main);
	Bitmap bitmap = null;
	Module module = null;
	try {
	// creating bitmap from packaged into app android asset 'image.jpg',
	// app/src/main/assets/image.jpg
	bitmap = BitmapFactory.decodeStream(getAssets().open("image.jpg"));
	// loading serialized torchscript module from packaged into app android asset model.pt,
	// app/src/model/assets/model.pt
	module = LiteModuleLoader.load(assetFilePath(this, "model.pt"));
	} catch (IOException e) {
	Log.e("PytorchHelloWorld", "Error reading assets", e);
	finish();
	}
	// showing image on UI
	ImageView imageView = findViewById(R.id.image);
	imageView.setImageBitmap(bitmap);
	// preparing input tensor
	final Tensor inputTensor = TensorImageUtils.bitmapToFloat32Tensor(bitmap,
	TensorImageUtils.TORCHVISION_NORM_MEAN_RGB, TensorImageUtils.TORCHVISION_NORM_STD_RGB, MemoryFormat.CHANNELS_LAST);
	// running the model
	final Tensor outputTensor = module.forward(IValue.from(inputTensor)).toTensor();
	// getting tensor content as java array of floats
	final float[] scores = outputTensor.getDataAsFloatArray();
	// searching for the index with maximum score
	float maxScore = -Float.MAX_VALUE;
	int maxScoreIdx = -1;
	for (int i = 0; i < scores.length; i++) {
	if (scores[i] > maxScore) {
	maxScore = scores[i];
	maxScoreIdx = i;
	}
	}

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