在Java中使用OpenCV的BOWKMeansTrainer,可以通过以下步骤实现:
import org.opencv.core.Mat;
import org.opencv.core.MatOfFloat;
import org.opencv.core.MatOfInt;
import org.opencv.core.MatOfKeyPoint;
import org.opencv.core.TermCriteria;
import org.opencv.features2d.FeatureDetector;
import org.opencv.features2d.DescriptorExtractor;
import org.opencv.features2d.DescriptorMatcher;
import org.opencv.features2d.BOWKMeansTrainer;
BOWKMeansTrainer bowTrainer = new BOWKMeansTrainer(k); // k为聚类的簇数
bowTrainer.setTermCriteria(new TermCriteria(TermCriteria.MAX_ITER, 100, 0.001));
FeatureDetector detector = FeatureDetector.create(FeatureDetector.SIFT);
DescriptorExtractor extractor = DescriptorExtractor.create(DescriptorExtractor.SIFT);
DescriptorMatcher matcher = DescriptorMatcher.create(DescriptorMatcher.BRUTEFORCE);
MatOfKeyPoint keypoints = new MatOfKeyPoint();
Mat descriptors = new Mat();
detector.detect(image, keypoints);
extractor.compute(image, keypoints, descriptors);
bowTrainer.add(descriptors);
Mat vocabulary = bowTrainer.cluster();
这是在Java中使用OpenCV的BOWKMeansTrainer的基本步骤。请注意,这只是一个简单的示例,实际应用中可能需要根据具体需求进行适当的调整和优化。
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