diff --git a/mediapipe/tasks/examples/android/BUILD b/mediapipe/tasks/examples/android/BUILD
deleted file mode 100644
index f2c90236b..000000000
--- a/mediapipe/tasks/examples/android/BUILD
+++ /dev/null
@@ -1,21 +0,0 @@
-# Copyright 2022 The MediaPipe Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-licenses(["notice"])
-
-filegroup(
- name = "resource_files",
- srcs = glob(["res/**"]),
- visibility = ["//mediapipe/tasks/examples/android:__subpackages__"],
-)
diff --git a/mediapipe/tasks/examples/android/objectdetector/src/main/AndroidManifest.xml b/mediapipe/tasks/examples/android/objectdetector/src/main/AndroidManifest.xml
deleted file mode 100644
index 5c53dc269..000000000
--- a/mediapipe/tasks/examples/android/objectdetector/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/mediapipe/tasks/examples/android/objectdetector/src/main/BUILD b/mediapipe/tasks/examples/android/objectdetector/src/main/BUILD
deleted file mode 100644
index 28bd38f9f..000000000
--- a/mediapipe/tasks/examples/android/objectdetector/src/main/BUILD
+++ /dev/null
@@ -1,49 +0,0 @@
-# Copyright 2022 The MediaPipe Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-licenses(["notice"])
-
-package(default_visibility = ["//visibility:private"])
-
-android_binary(
- name = "objectdetector",
- srcs = glob(["**/*.java"]),
- assets = [
- "//mediapipe/tasks/testdata/vision:test_models",
- ],
- assets_dir = "",
- custom_package = "com.google.mediapipe.tasks.examples.objectdetector",
- manifest = "AndroidManifest.xml",
- manifest_values = {
- "applicationId": "com.google.mediapipe.tasks.examples.objectdetector",
- },
- multidex = "native",
- resource_files = ["//mediapipe/tasks/examples/android:resource_files"],
- deps = [
- "//mediapipe/java/com/google/mediapipe/framework:android_framework",
- "//mediapipe/java/com/google/mediapipe/framework/image",
- "//mediapipe/tasks/java/com/google/mediapipe/tasks/components/containers:detection",
- "//mediapipe/tasks/java/com/google/mediapipe/tasks/core",
- "//mediapipe/tasks/java/com/google/mediapipe/tasks/vision:core",
- "//mediapipe/tasks/java/com/google/mediapipe/tasks/vision:objectdetector",
- "//third_party:androidx_appcompat",
- "//third_party:androidx_constraint_layout",
- "//third_party:opencv",
- "@maven//:androidx_activity_activity",
- "@maven//:androidx_concurrent_concurrent_futures",
- "@maven//:androidx_exifinterface_exifinterface",
- "@maven//:androidx_fragment_fragment",
- "@maven//:com_google_guava_guava",
- ],
-)
diff --git a/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/MainActivity.java b/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/MainActivity.java
deleted file mode 100644
index abfd7c7d1..000000000
--- a/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/MainActivity.java
+++ /dev/null
@@ -1,239 +0,0 @@
-// Copyright 2022 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package com.google.mediapipe.tasks.examples.objectdetector;
-
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.media.MediaMetadataRetriever;
-import android.os.Bundle;
-import android.provider.MediaStore;
-import androidx.appcompat.app.AppCompatActivity;
-import android.util.Log;
-import android.view.View;
-import android.widget.Button;
-import android.widget.FrameLayout;
-import androidx.activity.result.ActivityResultLauncher;
-import androidx.activity.result.contract.ActivityResultContracts;
-import androidx.exifinterface.media.ExifInterface;
-// ContentResolver dependency
-import com.google.mediapipe.framework.MediaPipeException;
-import com.google.mediapipe.framework.image.BitmapImageBuilder;
-import com.google.mediapipe.framework.image.MPImage;
-import com.google.mediapipe.tasks.core.BaseOptions;
-import com.google.mediapipe.tasks.vision.core.ImageProcessingOptions;
-import com.google.mediapipe.tasks.vision.core.RunningMode;
-import com.google.mediapipe.tasks.vision.objectdetector.ObjectDetectionResult;
-import com.google.mediapipe.tasks.vision.objectdetector.ObjectDetector;
-import com.google.mediapipe.tasks.vision.objectdetector.ObjectDetector.ObjectDetectorOptions;
-import java.io.IOException;
-import java.io.InputStream;
-
-/** Main activity of MediaPipe Task Object Detector reference app. */
-public class MainActivity extends AppCompatActivity {
- private static final String TAG = "MainActivity";
- private static final String MODEL_FILE = "coco_ssd_mobilenet_v1_1.0_quant_2018_06_29.tflite";
-
- private ObjectDetector objectDetector;
-
- private enum InputSource {
- UNKNOWN,
- IMAGE,
- VIDEO,
- CAMERA,
- }
-
- private InputSource inputSource = InputSource.UNKNOWN;
-
- // Image mode demo component.
- private ActivityResultLauncher imageGetter;
- // Video mode demo component.
- private ActivityResultLauncher videoGetter;
- private ObjectDetectionResultImageView imageView;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- setupImageModeDemo();
- setupVideoModeDemo();
- // TODO: Adds live camera demo.
- }
-
- /** Sets up the image mode demo. */
- private void setupImageModeDemo() {
- imageView = new ObjectDetectionResultImageView(this);
- // The Intent to access gallery and read images as bitmap.
- imageGetter =
- registerForActivityResult(
- new ActivityResultContracts.StartActivityForResult(),
- result -> {
- Intent resultIntent = result.getData();
- if (resultIntent != null) {
- if (result.getResultCode() == RESULT_OK) {
- Bitmap bitmap = null;
- int rotation = 0;
- try {
- bitmap =
- downscaleBitmap(
- MediaStore.Images.Media.getBitmap(
- this.getContentResolver(), resultIntent.getData()));
- } catch (IOException e) {
- Log.e(TAG, "Bitmap reading error:" + e);
- }
- try {
- InputStream imageData =
- this.getContentResolver().openInputStream(resultIntent.getData());
- rotation = getImageRotation(imageData);
- } catch (IOException | MediaPipeException e) {
- Log.e(TAG, "Bitmap rotation error:" + e);
- }
- if (bitmap != null) {
- MPImage image = new BitmapImageBuilder(bitmap).build();
- ObjectDetectionResult detectionResult =
- objectDetector.detect(
- image,
- ImageProcessingOptions.builder().setRotationDegrees(rotation).build());
- imageView.setData(image, detectionResult);
- runOnUiThread(() -> imageView.update());
- }
- }
- }
- });
- Button loadImageButton = findViewById(R.id.button_load_picture);
- loadImageButton.setOnClickListener(
- v -> {
- if (inputSource != InputSource.IMAGE) {
- createObjectDetector(RunningMode.IMAGE);
- this.inputSource = InputSource.IMAGE;
- updateLayout();
- }
- // Reads images from gallery.
- Intent pickImageIntent = new Intent(Intent.ACTION_PICK);
- pickImageIntent.setDataAndType(MediaStore.Images.Media.INTERNAL_CONTENT_URI, "image/*");
- imageGetter.launch(pickImageIntent);
- });
- }
-
- /** Sets up the video mode demo. */
- private void setupVideoModeDemo() {
- imageView = new ObjectDetectionResultImageView(this);
- // The Intent to access gallery and read a video file.
- videoGetter =
- registerForActivityResult(
- new ActivityResultContracts.StartActivityForResult(),
- result -> {
- Intent resultIntent = result.getData();
- if (resultIntent != null) {
- if (result.getResultCode() == RESULT_OK) {
- MediaMetadataRetriever metaRetriever = new MediaMetadataRetriever();
- metaRetriever.setDataSource(this, resultIntent.getData());
- long duration =
- Long.parseLong(
- metaRetriever.extractMetadata(
- MediaMetadataRetriever.METADATA_KEY_DURATION));
- int numFrames =
- Integer.parseInt(
- metaRetriever.extractMetadata(
- MediaMetadataRetriever.METADATA_KEY_VIDEO_FRAME_COUNT));
- long frameIntervalMs = duration / numFrames;
- for (int i = 0; i < numFrames; ++i) {
- MPImage image =
- new BitmapImageBuilder(metaRetriever.getFrameAtIndex(i)).build();
- ObjectDetectionResult detectionResult =
- objectDetector.detectForVideo(image, frameIntervalMs * i);
- // Currently only annotates the detection result on the first video frame and
- // display it to verify the correctness.
- // TODO: Annotates the detection result on every frame, save the
- // annotated frames as a video file, and play back the video afterwards.
- if (i == 0) {
- imageView.setData(image, detectionResult);
- runOnUiThread(() -> imageView.update());
- }
- }
- }
- }
- });
- Button loadVideoButton = findViewById(R.id.button_load_video);
- loadVideoButton.setOnClickListener(
- v -> {
- createObjectDetector(RunningMode.VIDEO);
- updateLayout();
- this.inputSource = InputSource.VIDEO;
-
- // Reads a video from gallery.
- Intent pickVideoIntent = new Intent(Intent.ACTION_PICK);
- pickVideoIntent.setDataAndType(MediaStore.Video.Media.INTERNAL_CONTENT_URI, "video/*");
- videoGetter.launch(pickVideoIntent);
- });
- }
-
- private void createObjectDetector(RunningMode mode) {
- if (objectDetector != null) {
- objectDetector.close();
- }
- // Initializes a new MediaPipe ObjectDetector instance
- ObjectDetectorOptions options =
- ObjectDetectorOptions.builder()
- .setBaseOptions(BaseOptions.builder().setModelAssetPath(MODEL_FILE).build())
- .setScoreThreshold(0.5f)
- .setMaxResults(5)
- .setRunningMode(mode)
- .build();
- objectDetector = ObjectDetector.createFromOptions(this, options);
- }
-
- private void updateLayout() {
- // Updates the preview layout.
- FrameLayout frameLayout = findViewById(R.id.preview_display_layout);
- frameLayout.removeAllViewsInLayout();
- imageView.setImageDrawable(null);
- frameLayout.addView(imageView);
- imageView.setVisibility(View.VISIBLE);
- }
-
- private Bitmap downscaleBitmap(Bitmap originalBitmap) {
- double aspectRatio = (double) originalBitmap.getWidth() / originalBitmap.getHeight();
- int width = imageView.getWidth();
- int height = imageView.getHeight();
- if (((double) imageView.getWidth() / imageView.getHeight()) > aspectRatio) {
- width = (int) (height * aspectRatio);
- } else {
- height = (int) (width / aspectRatio);
- }
- return Bitmap.createScaledBitmap(originalBitmap, width, height, false);
- }
-
- private int getImageRotation(InputStream imageData) throws IOException, MediaPipeException {
- int orientation =
- new ExifInterface(imageData)
- .getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
- switch (orientation) {
- case ExifInterface.ORIENTATION_NORMAL:
- return 0;
- case ExifInterface.ORIENTATION_ROTATE_90:
- return 90;
- case ExifInterface.ORIENTATION_ROTATE_180:
- return 180;
- case ExifInterface.ORIENTATION_ROTATE_270:
- return 270;
- default:
- // TODO: use getRotationDegrees() and isFlipped() instead of switch once flip
- // is supported.
- throw new MediaPipeException(
- MediaPipeException.StatusCode.UNIMPLEMENTED.ordinal(),
- "Flipped images are not supported yet.");
- }
- }
-}
diff --git a/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/ObjectDetectionResultImageView.java b/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/ObjectDetectionResultImageView.java
deleted file mode 100644
index e37c64156..000000000
--- a/mediapipe/tasks/examples/android/objectdetector/src/main/java/com/google/mediapipe/tasks/examples/objectdetector/ObjectDetectionResultImageView.java
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2022 The MediaPipe Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package com.google.mediapipe.tasks.examples.objectdetector;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Matrix;
-import android.graphics.Paint;
-import androidx.appcompat.widget.AppCompatImageView;
-import com.google.mediapipe.framework.image.BitmapExtractor;
-import com.google.mediapipe.framework.image.MPImage;
-import com.google.mediapipe.tasks.components.containers.Detection;
-import com.google.mediapipe.tasks.vision.objectdetector.ObjectDetectionResult;
-
-/** An ImageView implementation for displaying {@link ObjectDetectionResult}. */
-public class ObjectDetectionResultImageView extends AppCompatImageView {
- private static final String TAG = "ObjectDetectionResultImageView";
-
- private static final int BBOX_COLOR = Color.GREEN;
- private static final int BBOX_THICKNESS = 5; // Pixels
- private Bitmap latest;
-
- public ObjectDetectionResultImageView(Context context) {
- super(context);
- setScaleType(AppCompatImageView.ScaleType.FIT_CENTER);
- }
-
- /**
- * Sets a {@link MPImage} and an {@link ObjectDetectionResult} to render.
- *
- * @param image a {@link MPImage} object for annotation.
- * @param result an {@link ObjectDetectionResult} object that contains the detection result.
- */
- public void setData(MPImage image, ObjectDetectionResult result) {
- if (image == null || result == null) {
- return;
- }
- latest = BitmapExtractor.extract(image);
- Canvas canvas = new Canvas(latest);
- canvas.drawBitmap(latest, new Matrix(), null);
- for (int i = 0; i < result.detections().size(); ++i) {
- drawDetectionOnCanvas(result.detections().get(i), canvas);
- }
- }
-
- /** Updates the image view with the latest {@link ObjectDetectionResult}. */
- public void update() {
- postInvalidate();
- if (latest != null) {
- setImageBitmap(latest);
- }
- }
-
- private void drawDetectionOnCanvas(Detection detection, Canvas canvas) {
- // TODO: Draws the category and the score per bounding box.
- // Draws bounding box.
- Paint bboxPaint = new Paint();
- bboxPaint.setColor(BBOX_COLOR);
- bboxPaint.setStyle(Paint.Style.STROKE);
- bboxPaint.setStrokeWidth(BBOX_THICKNESS);
- canvas.drawRect(detection.boundingBox(), bboxPaint);
- }
-}
diff --git a/mediapipe/tasks/examples/android/res/drawable-v24/ic_launcher_foreground.xml b/mediapipe/tasks/examples/android/res/drawable-v24/ic_launcher_foreground.xml
deleted file mode 100644
index c7bd21dbd..000000000
--- a/mediapipe/tasks/examples/android/res/drawable-v24/ic_launcher_foreground.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-
-
-
-
-