【发布时间】:2014-01-28 12:58:31
【问题描述】:
我正在使用 SURF/FLANN 检测器,我希望将图像、点、描述符保存到一个文件中,以便我可以比较这个图像,它指向第二个图像和点但是我得到以下写的时候出错:
In file included from detectFlannPoints.cpp:4:0:
/usr/local/include/opencv2/features2d/features2d.hpp:112:17: note: void cv::write(cv::FileStorage&, const string&, const std::vector<cv::KeyPoint>&)
/usr/local/include/opencv2/features2d/features2d.hpp:112:17: note: candidate expects 3 arguments, 4 provided
这是我用来编写的代码:
FileStorage fs("Keypoints.yml", FileStorage::WRITE);
write(fs, "templateImageOne", keypoints_1, tempDescriptors_1);
fs.release();
我不确定在哪里可以指定额外参数 (tempDescriptors_1),因为删除了这个参数后它可以正常工作。
写代码的正上方代码:
//Detect the keypoints using SURF Detector
int minHessian = 400;
SurfFeatureDetector detector( minHessian );
std::vector<KeyPoint> keypoints_1;
detector.detect( img_1, keypoints_1 );
//-- Step 2: Calculate descriptors (feature vectors)
SurfDescriptorExtractor extractor;
Mat tempDescriptors_1;
extractor.compute( img_1, keypoints_1, tempDescriptors_1 );
//-- Draw keypoints
Mat img_keypoints_1;
drawKeypoints( img_1, keypoints_1, img_keypoints_1, Scalar::all(-1), DrawMatchesFlags::DEFAULT );
【问题讨论】:
标签: c++ opencv image-processing surf flann