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2022-81
Commit 0eaed9bd authored by P.Y.D Jayasinghe's avatar P.Y.D Jayasinghe
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app/src/main/java/com/example/resnetnew/ImageNetClasses.java deleted 100644 → 0
View file @ c68fa316
package com.example.resnetnew;
public class ImageNetClasses {
public static String[] IMAGENET_CLASSES = new String[]{
"Snake weed",
"Siam weed",
"Rubber vine",
"Prickly acacia",
"Parthenium",
"Parkinsonia",
"Negative",
"Lantana",
"Chinee apple"
};
}
app/src/main/java/com/example/resnetnew/MainActivity.java deleted 100644 → 0
View file @ c68fa316
package com.example.resnetnew;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import org.pytorch.IValue;
import org.pytorch.LiteModuleLoader;
import org.pytorch.MemoryFormat;
import org.pytorch.Module;
import org.pytorch.Tensor;
import org.pytorch.torchvision.TensorImageUtils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class MainActivity extends AppCompatActivity {
private Bitmap bitmap = null;
private Module module = null;
public static String assetFilePath(Context context, String assetName) throws IOException {
File file = new File(context.getFilesDir(), assetName);
if (file.exists() && file.length() > 0) {
return file.getAbsolutePath();
}
try (InputStream is = context.getAssets().open(assetName)) {
try (OutputStream os = new FileOutputStream(file)) {
byte[] buffer = new byte[4 * 1024];
int read;
while ((read = is.read(buffer)) != -1) {
os.write(buffer, 0, read);
}
os.flush();
}
return file.getAbsolutePath();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
// creating bitmap from packaged into app android asset 'image.jpg',
// app/src/main/assets/image.jpg
bitmap = BitmapFactory.decodeStream(getAssets().open("temp.jpg"));
// loading serialized torchscript module from packaged into app android asset model.pt,
// app/src/model/assets/model.pt
module = LiteModuleLoader.load(assetFilePath(this, "optimized.ptl"));
} catch (IOException e) {
Log.e("PytorchHelloWorld", "Error reading assets", e);
finish();
}
// showing image on UI
ImageView imageView = findViewById(R.id.imageView);
imageView.setImageBitmap(bitmap);
final Button button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// 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;
}
}
String className = ImageNetClasses.IMAGENET_CLASSES[maxScoreIdx];
// showing className on UI
TextView textView = findViewById(R.id.text);
textView.setText(className);
}
});
}
}
\ No newline at end of file
app/src/main/java/com/example/resnetnew/Unet.java deleted 100644 → 0
View file @ c68fa316
package com.example.resnetnew;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.media.ThumbnailUtils;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.unet.ml.Model;
import org.tensorflow.lite.DataType;
import org.tensorflow.lite.support.tensorbuffer.TensorBuffer;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
public class Unet extends AppCompatActivity {
Button camera, gallery;
ImageView imageView;
TextView result;
int imageSize = 256;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_unet);
camera = findViewById(R.id.button);
gallery = findViewById(R.id.button2);
result = findViewById(R.id.result);
imageView = findViewById(R.id.imageView);
camera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (checkSelfPermission(Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 3);
} else {
requestPermissions(new String[]{Manifest.permission.CAMERA}, 100);
}
}
});
gallery.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent cameraIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(cameraIntent, 1);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
if(resultCode == RESULT_OK){
if(requestCode == 3){
Bitmap image = (Bitmap) data.getExtras().get("data");
int dimension = Math.min(image.getWidth(), image.getHeight());
image = ThumbnailUtils.extractThumbnail(image, dimension, dimension);
imageView.setImageBitmap(image);
image = Bitmap.createScaledBitmap(image, imageSize, imageSize, false);
classifyImage(image);
}else{
Uri dat = data.getData();
Bitmap image = null;
try {
image = MediaStore.Images.Media.getBitmap(this.getContentResolver(), dat);
} catch (IOException e) {
e.printStackTrace();
}
imageView.setImageBitmap(image);
image = Bitmap.createScaledBitmap(image, imageSize, imageSize, false);
classifyImage(image);
}
}
super.onActivityResult(requestCode, resultCode, data);
}
public void classifyImage(Bitmap image){
try {
Model model = Model.newInstance(getApplicationContext());
// Creates inputs for reference.
TensorBuffer inputFeature0 = TensorBuffer.createFixedSize(new int[]{1, 256, 256, 3}, DataType.FLOAT32);
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(4 * imageSize * imageSize * 3);
byteBuffer.order(ByteOrder.nativeOrder());
int[] intValues = new int[imageSize * imageSize];
image.getPixels(intValues, 0, image.getWidth(), 0, 0, image.getWidth(), image.getHeight());
int pixel = 0;
//iterate over each pixel and extract R, G, and B values. Add those values individually to the byte buffer.
for(int i = 0; i < imageSize; i ++){
for(int j = 0; j < imageSize; j++){
int val = intValues[pixel++]; // RGB
byteBuffer.putFloat(((val >> 16) & 0xFF) * (1.f / 1));
byteBuffer.putFloat(((val >> 8) & 0xFF) * (1.f / 1));
byteBuffer.putFloat((val & 0xFF) * (1.f / 1));
}
}
inputFeature0.loadBuffer(byteBuffer);
// Runs model inference and gets result.
Model.Outputs outputs = model.process(inputFeature0);
TensorBuffer outputFeature0 = outputs.getOutputFeature0AsTensorBuffer();
float[] confidences = outputFeature0.getFloatArray();
// find the index of the class with the biggest confidence.
int maxPos = 0;
float maxConfidence = 0;
for (int i = 0; i < confidences.length; i++) {
if (confidences[i] > maxConfidence) {
maxConfidence = confidences[i];
maxPos = i;
}
}
String[] classes = {"unlabeled", "weed", "rice","sand"};
result.setText(classes[maxPos]);
// Releases model resources if no longer used.
model.close();
} catch (IOException e) {
// TODO Handle the exception
}
}
}
\ No newline at end of file
app/src/main/res/layout/activity_main.xml deleted 100644 → 0
View file @ c68fa316
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ImageView
android:id="@+id/imageView"
android:layout_width="156dp"
android:layout_height="165dp"
android:layout_marginTop="36dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_launcher_background" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/imageView" />
<TextView
android:id="@+id/textView"
android:layout_width="164dp"
android:layout_height="144dp"
android:layout_marginTop="8dp"
android:text="TextView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.497"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/button" />
</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
app/src/main/res/layout/activity_unet.xml deleted 100644 → 0
View file @ c68fa316
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Unet">
<ImageView
android:id="@+id/imageView"
android:layout_width="370sp"
android:layout_height="370sp"
android:layout_centerHorizontal="true"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="25dp" />
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@id/button2"
android:layout_centerInParent="true"
android:text="Take Picture"
android:textAllCaps="false"
android:textSize="21sp"
android:textStyle="bold"
app:layout_constraintTop_toBottomOf="@+id/imageView"
tools:layout_editor_absoluteX="0dp" />
<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerInParent="true"
android:text="Launch Gallery"
android:textAllCaps="false"
android:textSize="21sp"
android:textStyle="bold"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="477dp" />
<TextView
android:id="@+id/classified"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/imageView"
android:layout_centerHorizontal="true"
android:text="Classified as:"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintTop_toBottomOf="@+id/button"
tools:layout_editor_absoluteX="133dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text=""
android:textColor="#C30000"
android:textStyle="bold"
android:textSize="27sp"
android:id="@+id/result"
android:layout_below="@+id/classified"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
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