void CRecoImage::FindFeatures(SIFT& SIFTDetector)
{
Mat image;
if(!this->LoadImg(image))
{
CRecoLogMgr::Instance()->WriteLog("CRecoImage -> FindFeatures !FAILURE! Could not open or find the image. Path is: " + this->GetFullImagePath());
}
SIFTDetector.detect(image, this->_KeyPoints);
}
Mat Pyramids::extractFeatures(const Mat &im, vector<KeyPoint> &keypoints, int step)
{
Mat features;
SIFT dec;
if (step <= 0)
dec.detect(im, keypoints);
else
keypoints = extractDenseKeypoints(im, step);
dec.compute(im, keypoints, features);
return features;
}
/*****************************************************************************
* @brief : siftFeatureDetect
* @author : Zhangle
* @date : 2014/9/8 11:18
* @version : ver 1.0
* @inparam :
* @outparam :
*****************************************************************************/
void FeatureDetect::siftFeatureDetect(string inputImageName, string outputImageName,string outputTxtName) {
Mat image = imread(inputImageName);
Mat descriptors;
vector<KeyPoint> keypoints;
SIFT sift;
time_t beginTime = time(NULL);
sift.detect(image,keypoints);
time_t endTime = time(NULL);
time_t runTime = endTime - beginTime;
drawKeypoints(image,keypoints,image,Scalar(0,255,0));
imwrite(outputImageName,image);
ofstream outTxt(outputTxtName);
outTxt << "SIFT" << endl;
outTxt << "影像尺寸:" << image.cols<<" * "<<image.rows<<endl;
outTxt << "特征点数目：" << keypoints.size() <<"个"<< endl;
outTxt << "提取特征点耗费时间：" << runTime << "s"<< endl;
outTxt << "默认参数设置" << endl;
outTxt.close();
}