C++에서 Bag Of Words를 사용하고 있는데 샘플 코드가 있지만이 오류는 계속 던져 버리고 그 이유를 모르겠습니다.C++ Bag of Words - OpenCV : 어설 션 실패
나는 완전히 새롭고 매우 상실감이 있습니다. 여기
코드의 전체입니다 :#include "stdafx.h"
#include <opencv/cv.h>
#include <opencv/highgui.h>
#include <opencv2/nonfree/features2d.hpp>
using namespace cv;
using namespace std;
#define DICTIONARY_BUILD 1 // set DICTIONARY_BUILD 1 to do Step 1, otherwise it goes to step 2
int _tmain(int argc, _TCHAR* argv[])
{
#if DICTIONARY_BUILD == 1
//Step 1 - Obtain the set of bags of features.
//to store the input file names
char * filename = new char[100];
//to store the current input image
Mat input;
//To store the keypoints that will be extracted by SIFT
vector<KeyPoint> keypoints;
//To store the SIFT descriptor of current image
Mat descriptor;
//To store all the descriptors that are extracted from all the images.
Mat featuresUnclustered;
//The SIFT feature extractor and descriptor
SiftDescriptorExtractor detector;
//I select 20 (1000/50) images from 1000 images to extract feature descriptors and build the vocabulary
for(int f=0;f<999;f+=50){
//create the file name of an image
sprintf(filename,"G:\\testimages\\image\\%i.jpg",f);
//open the file
input = imread(filename, CV_LOAD_IMAGE_GRAYSCALE); // -- Forgot to add in
//detect feature points
detector.detect(input, keypoints);
//compute the descriptors for each keypoint
detector.compute(input, keypoints,descriptor);
//put the all feature descriptors in a single Mat object
featuresUnclustered.push_back(descriptor);
//print the percentage
printf("%i percent done\n",f/10);
}
//Construct BOWKMeansTrainer
//the number of bags
int dictionarySize=200;
//define Term Criteria
TermCriteria tc(CV_TERMCRIT_ITER,100,0.001);
//retries number
int retries=1;
//necessary flags
int flags=KMEANS_PP_CENTERS;
//Create the BoW (or BoF) trainer
BOWKMeansTrainer bowTrainer(dictionarySize,tc,retries,flags);
//cluster the feature vectors
Mat dictionary;
dictionary=bowTrainer.cluster(featuresUnclustered); // -- BREAKS
//store the vocabulary
FileStorage fs("dictionary.yml", FileStorage::WRITE);
fs << "vocabulary" << dictionary;
fs.release();
#else
//Step 2 - Obtain the BoF descriptor for given image/video frame.
//prepare BOW descriptor extractor from the dictionary
Mat dictionary;
FileStorage fs("dictionary.yml", FileStorage::READ);
fs["vocabulary"] >> dictionary;
fs.release();
//create a nearest neighbor matcher
Ptr<DescriptorMatcher> matcher(new FlannBasedMatcher);
//create Sift feature point extracter
Ptr<FeatureDetector> detector(new SiftFeatureDetector());
//create Sift descriptor extractor
Ptr<DescriptorExtractor> extractor(new SiftDescriptorExtractor);
//create BoF (or BoW) descriptor extractor
BOWImgDescriptorExtractor bowDE(extractor,matcher);
//Set the dictionary with the vocabulary we created in the first step
bowDE.setVocabulary(dictionary);
//To store the image file name
char * filename = new char[100];
//To store the image tag name - only for save the descriptor in a file
char * imageTag = new char[10];
//open the file to write the resultant descriptor
FileStorage fs1("descriptor.yml", FileStorage::WRITE);
//the image file with the location. change it according to your image file location
sprintf(filename,"G:\\testimages\\image\\1.jpg");
//read the image
Mat img=imread(filename,CV_LOAD_IMAGE_GRAYSCALE);
//To store the keypoints that will be extracted by SIFT
vector<KeyPoint> keypoints;
//Detect SIFT keypoints (or feature points)
detector->detect(img,keypoints);
//To store the BoW (or BoF) representation of the image
Mat bowDescriptor;
//extract BoW (or BoF) descriptor from given image
bowDE.compute(img,keypoints,bowDescriptor);
//prepare the yml (some what similar to xml) file
sprintf(imageTag,"img1");
//write the new BoF descriptor to the file
fs1 << imageTag << bowDescriptor;
//You may use this descriptor for classifying the image.
//release the file storage
fs1.release();
#endif
printf("\ndone\n");
return 0;
}
그러나 그것은이를 던졌습니다 :
OpenCV의 오류 : 어설 션 (data.dims < = 2 & & 유형 == CV_32F & & 실패 K> 0) cv :: kmeans 파일 C : \ buildslave64 \ win64_amdoc1 \ 2_4_PackSlave-win32-vc11-shared \ opencv \ modules \ core \ src \ matrix.cpp 줄 2701
도움주세요.
편집이에 나누기
라인 :
dictionary = bowTrainer.cluster(featuresUnclustered); // -- Breaks
편집 2
Ive come across this,하지만 난 내 원인을 돕기 위해 번역하는 방법을 확실입니다.
그래서 당신이 할 수있는 한 가지는 단정을 유발하는 선을 파악하는 것입니다. 그 후에 어떤 기능이 고장 났는지 알 수 있습니다. 그런 다음 OpenCV 설명서를 읽고 해당 기능에 대해 읽고 사용중인 매개 변수 중 하나가 해당 인터페이스를 준수하지 않는지 확인하십시오. – Svalorzen
@Svalorzen 부울 라인을 보여주기 위해 편집 됨 – MLMLTL
@MLMLTL 문제와 관련이 없지만,'new char []'를 호출하는 대신'std :: string'을 사용해야합니다. – PaulMcKenzie