如何在Java中使用opencv BOWKMeansTrainer ?

I am using opencv 3.2 for Java (build source with contrib modules), and trying to use SURF + BOWKMeansTrainer for detect, but it throws an error when I run it.

我正在为Java使用opencv 3.2(带有后悔模块的构建源代码)，并试图使用SURF + BOWKMeansTrainer进行检测，但是当我运行它时它会抛出一个错误。

My code:

我的代码:

//read jpg to variable trainMats
//...

//train
Mat allDesc = new Mat();
int clusterCount = 30;
FeatureDetector detector = FeatureDetector.create(FeatureDetector.SURF);
DescriptorExtractor extractor = DescriptorExtractor.create(DescriptorExtractor.SURF);
BOWTrainer bowTrainer = new BOWKMeansTrainer(clusterCount);

for(int i = 0; i < trainMats.size(); i++) {
    Mat trainMat = trainMats.get(i);
    MatOfKeyPoint matOfKeyPoint = new MatOfKeyPoint();
    Mat desc = new Mat();
    detector.detect(trainMat, matOfKeyPoint);
    extractor.compute(trainMat, matOfKeyPoint, desc);
    allDesc.push_back(desc);
}

Mat dictionary = bowTrainer.cluster(allDesc);

//...

throw error:

把错误:

Exception in thread "main" java.lang.Exception: unknown exception
    at org.opencv.features2d.BOWKMeansTrainer.cluster_1(Native Method)
    at org.opencv.features2d.BOWKMeansTrainer.cluster(BOWKMeansTrainer.java:62)

1 个解决方案

#1

Is by the OpenCV version. Try using 2.4.11

是OpenCV版本。试着用2.4.11