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ImageLabelingActivity.java
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ImageLabelingActivity.java
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/*
* Copyright 2020 Google LLC. All rights reserved.
*
* 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.example.mlkit;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.mlkit.vision.common.InputImage;
import com.google.mlkit.vision.label.ImageLabel;
import com.google.mlkit.vision.label.ImageLabeler;
import com.google.mlkit.vision.label.ImageLabeling;
import com.google.mlkit.vision.label.defaults.ImageLabelerOptions;
import java.util.List;
public class ImageLabelingActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
private void labelImages(InputImage image) {
ImageLabelerOptions options =
new ImageLabelerOptions.Builder()
.setConfidenceThreshold(0.8f)
.build();
// [START get_detector_options]
ImageLabeler labeler = ImageLabeling.getClient(options);
// [END get_detector_options]
/*
// [START get_detector_default]
// Or use the default options:
ImageLabeler detector = ImageLabeling.getClient(ImageLabelerOptions.DEFAULT_OPTIONS);
// [END get_detector_default]
*/
// [START run_detector]
Task<List<ImageLabel>> result =
labeler.process(image)
.addOnSuccessListener(
new OnSuccessListener<List<ImageLabel>>() {
@Override
public void onSuccess(List<ImageLabel> labels) {
// Task completed successfully
// [START_EXCLUDE]
// [START get_labels]
for (ImageLabel label : labels) {
String text = label.getText();
float confidence = label.getConfidence();
}
// [END get_labels]
// [END_EXCLUDE]
}
})
.addOnFailureListener(
new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
// Task failed with an exception
// ...
}
});
// [END run_detector]
}
private void configureAndRunImageLabeler(InputImage image) {
// [START on_device_image_labeler]
// To use default options:
ImageLabeler labeler = ImageLabeling.getClient(ImageLabelerOptions.DEFAULT_OPTIONS);
// Or, to set the minimum confidence required:
// ImageLabelerOptions options =
// new ImageLabelerOptions.Builder()
// .setConfidenceThreshold(0.7f)
// .build();
// ImageLabeler labeler = ImageLabeling.getClient(options);
// [END on_device_image_labeler]
// Process image with custom onSuccess() example
// [START process_image]
labeler.process(image)
.addOnSuccessListener(new OnSuccessListener<List<ImageLabel>>() {
@Override
public void onSuccess(List<ImageLabel> labels) {
// Task completed successfully
// ...
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
// Task failed with an exception
// ...
}
});
// [END process_image]
// Process image with example onSuccess()
labeler.process(image)
.addOnSuccessListener(new OnSuccessListener<List<ImageLabel>>() {
@Override
public void onSuccess(List<ImageLabel> labels) {
// [START get_image_label_info]
for (ImageLabel label : labels) {
String text = label.getText();
float confidence = label.getConfidence();
int index = label.getIndex();
}
// [END get_image_label_info]
}
});
}
}