静的ジェスチャの KNN 分類を行っていますが、このエラーが発生します。
エラー: NUIGHR.exe の 0x01213aa2 で未処理の例外: 0xC0000005: アクセス違反の読み取り場所 0x00000000.
CvMat* GetFeatures(CvSeq* contour, CvSeq* hull, double boundingRectArea){
CvMoments moments;
CvHuMoments humoments;
cvMoments(contour, &moments, cvGetHuMoments(&moments, &humoments);
int cCont;
double cArea, cPerimeter, cDiameter, cExtent, cCompactness, cEccentricity, cCircularity;
cCont = contour->total;
cArea = fabs(cvContourArea(contour));
cPerimeter = cvContourPerimeter(contour);
cDiameter = sqrt( 4 * cArea / CV_PI);
cExtent = cArea / (boundingRectArea * boundingRectArea);
cCompactness = (4 * cArea * CV_PI) / cPerimeter;
cEccentricity = pow( (moments.m20 - moments.m02), 2) - (4 * pow(moments.m11, 2)) / ( pow(moments.m20 + moments.m02, 2) );
cCircularity = pow(cPerimeter, 2) / cArea;
cvmSet( featureVector, 0, 0, boundingRectArea);
cvmSet( featureVector, 0, 1, cCont);
cvmSet( featureVector, 0, 2, cArea);
cvmSet( featureVector, 0, 3, cPerimeter);
cvmSet( featureVector, 0, 4, cDiameter);
cvmSet( featureVector, 0, 5, cExtent);
cvmSet( featureVector, 0, 6, cCompactness);
cvmSet( featureVector, 0, 7, cEccentricity);
cvmSet( featureVector, 0, 8, cCircularity);
cvmSet( featureVector, 0, 9, humoments.hu1);
cvmSet( featureVector, 0, 10, humoments.hu2);
cvmSet( featureVector, 0, 11, humoments.hu3);
cvmSet( featureVector, 0, 12, humoments.hu4);
cvmSet( featureVector, 0, 13, humoments.hu5);
cvmSet( featureVector, 0, 14, humoments.hu6);
cvmSet( featureVector, 0, 15, humoments.hu7);
return featureVector;
}
int main(){
...
const int K = 10;
CvKNearest *knn = NULL;
float resultNode = 0;
CvMat* featVector = cvCreateMat(1, NUMBER_OF_FEATURES, CV_32FC1 );
CvMat* nearest = cvCreateMat(1, K, CV_32FC1);
...
resultNode = knn->find_nearest(&featVector, K, 0, 0, nearest, 0);
}
CvMat* を CvMat に変換する必要があると思います。どうすればいいのですか？