Examples with TextAnnotation com.google.cloud.videointelligence.v1.TextAnnotation used on opensource projects

Example 36 with TextAnnotation

use of com.google.cloud.videointelligence.v1.TextAnnotation in project java-video-intelligence by googleapis.

the class TextDetection method detectText.

// [START video_detect_text]
/**
 * Detect text in a video.
 *
 * @param filePath the path to the video file to analyze.
 */
public static VideoAnnotationResults detectText(String filePath) throws Exception {
    try (VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.create()) {
        // Read file
        Path path = Paths.get(filePath);
        byte[] data = Files.readAllBytes(path);
        // Create the request
        AnnotateVideoRequest request = AnnotateVideoRequest.newBuilder().setInputContent(ByteString.copyFrom(data)).addFeatures(Feature.TEXT_DETECTION).build();
        // asynchronously perform object tracking on videos
        OperationFuture<AnnotateVideoResponse, AnnotateVideoProgress> future = client.annotateVideoAsync(request);
        System.out.println("Waiting for operation to complete...");
        // The first result is retrieved because a single video was processed.
        AnnotateVideoResponse response = future.get(300, TimeUnit.SECONDS);
        VideoAnnotationResults results = response.getAnnotationResults(0);
        // Get only the first annotation for demo purposes.
        TextAnnotation annotation = results.getTextAnnotations(0);
        System.out.println("Text: " + annotation.getText());
        // Get the first text segment.
        TextSegment textSegment = annotation.getSegments(0);
        System.out.println("Confidence: " + textSegment.getConfidence());
        // For the text segment display it's time offset
        VideoSegment videoSegment = textSegment.getSegment();
        Duration startTimeOffset = videoSegment.getStartTimeOffset();
        Duration endTimeOffset = videoSegment.getEndTimeOffset();
        // Display the offset times in seconds, 1e9 is part of the formula to convert nanos to seconds
        System.out.println(String.format("Start time: %.2f", startTimeOffset.getSeconds() + startTimeOffset.getNanos() / 1e9));
        System.out.println(String.format("End time: %.2f", endTimeOffset.getSeconds() + endTimeOffset.getNanos() / 1e9));
        // Show the first result for the first frame in the segment.
        TextFrame textFrame = textSegment.getFrames(0);
        Duration timeOffset = textFrame.getTimeOffset();
        System.out.println(String.format("Time offset for the first frame: %.2f", timeOffset.getSeconds() + timeOffset.getNanos() / 1e9));
        // Display the rotated bounding box for where the text is on the frame.
        System.out.println("Rotated Bounding Box Vertices:");
        List<NormalizedVertex> vertices = textFrame.getRotatedBoundingBox().getVerticesList();
        for (NormalizedVertex normalizedVertex : vertices) {
            System.out.println(String.format("\tVertex.x: %.2f, Vertex.y: %.2f", normalizedVertex.getX(), normalizedVertex.getY()));
        }
        return results;
    }
}

Example 37 with TextAnnotation

use of com.google.cloud.videointelligence.v1.TextAnnotation in project java-video-intelligence by googleapis.

the class TextDetection method detectTextGcs.

// [END video_detect_text_beta]
// [START video_detect_text_gcs_beta]
/**
 * Detect Text in a video.
 *
 * @param gcsUri the path to the video file to analyze.
 */
public static VideoAnnotationResults detectTextGcs(String gcsUri) throws Exception {
    try (VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.create()) {
        // Create the request
        AnnotateVideoRequest request = AnnotateVideoRequest.newBuilder().setInputUri(gcsUri).addFeatures(Feature.TEXT_DETECTION).build();
        // asynchronously perform object tracking on videos
        OperationFuture<AnnotateVideoResponse, AnnotateVideoProgress> future = client.annotateVideoAsync(request);
        System.out.println("Waiting for operation to complete...");
        // The first result is retrieved because a single video was processed.
        AnnotateVideoResponse response = future.get(600, TimeUnit.SECONDS);
        VideoAnnotationResults results = response.getAnnotationResults(0);
        // Get only the first annotation for demo purposes.
        TextAnnotation annotation = results.getTextAnnotations(0);
        System.out.println("Text: " + annotation.getText());
        // Get the first text segment.
        TextSegment textSegment = annotation.getSegments(0);
        System.out.println("Confidence: " + textSegment.getConfidence());
        // For the text segment display it's time offset
        VideoSegment videoSegment = textSegment.getSegment();
        Duration startTimeOffset = videoSegment.getStartTimeOffset();
        Duration endTimeOffset = videoSegment.getEndTimeOffset();
        // Display the offset times in seconds, 1e9 is part of the formula to convert nanos to seconds
        System.out.println(String.format("Start time: %.2f", startTimeOffset.getSeconds() + startTimeOffset.getNanos() / 1e9));
        System.out.println(String.format("End time: %.2f", endTimeOffset.getSeconds() + endTimeOffset.getNanos() / 1e9));
        // Show the first result for the first frame in the segment.
        TextFrame textFrame = textSegment.getFrames(0);
        Duration timeOffset = textFrame.getTimeOffset();
        System.out.println(String.format("Time offset for the first frame: %.2f", timeOffset.getSeconds() + timeOffset.getNanos() / 1e9));
        // Display the rotated bounding box for where the text is on the frame.
        System.out.println("Rotated Bounding Box Vertices:");
        List<NormalizedVertex> vertices = textFrame.getRotatedBoundingBox().getVerticesList();
        for (NormalizedVertex normalizedVertex : vertices) {
            System.out.println(String.format("\tVertex.x: %.2f, Vertex.y: %.2f", normalizedVertex.getX(), normalizedVertex.getY()));
        }
        return results;
    }
}

Example 38 with TextAnnotation

use of com.google.cloud.videointelligence.v1.TextAnnotation in project java-video-intelligence by googleapis.

the class DetectIT method testTextDetection.

@Test
public void testTextDetection() throws Exception {
    try {
        VideoAnnotationResults result = TextDetection.detectText("resources/googlework_short.mp4");
        boolean textExists = false;
        for (TextAnnotation textAnnotation : result.getTextAnnotationsList()) {
            for (String possibleText : POSSIBLE_TEXTS) {
                if (textAnnotation.getText().toUpperCase().contains(possibleText.toUpperCase())) {
                    textExists = true;
                    break;
                }
            }
        }
        assertThat(textExists).isTrue();
    } catch (TimeoutException ex) {
        Assert.assertTrue(ex.getMessage().contains("Waited"));
    }
}

Example 39 with TextAnnotation

use of com.google.cloud.videointelligence.v1.TextAnnotation in project java-video-intelligence by googleapis.

the class DetectIT method testTextDetectionGcs.

@Test
public void testTextDetectionGcs() throws Exception {
    VideoAnnotationResults result = TextDetection.detectTextGcs(FILE_LOCATION);
    boolean textExists = false;
    for (TextAnnotation textAnnotation : result.getTextAnnotationsList()) {
        for (String possibleText : POSSIBLE_TEXTS) {
            if (textAnnotation.getText().toUpperCase().contains(possibleText.toUpperCase())) {
                textExists = true;
                break;
            }
        }
    }
    assertThat(textExists).isTrue();
}

Example 40 with TextAnnotation

use of com.google.cloud.videointelligence.v1.TextAnnotation in project java-video-intelligence by googleapis.

the class DetectIT method testTextDetection.

@Test
public void testTextDetection() throws Exception {
    VideoAnnotationResults result = TextDetection.detectText("resources/googlework_short.mp4");
    boolean textExists = false;
    for (TextAnnotation textAnnotation : result.getTextAnnotationsList()) {
        for (String possibleText : POSSIBLE_TEXTS) {
            if (textAnnotation.getText().toUpperCase().contains(possibleText.toUpperCase())) {
                textExists = true;
                break;
            }
        }
    }
    assertThat(textExists).isTrue();
}