OpenCV_4.2.0/opencv_contrib-4.2.0/modules/datasets/samples/fr_lfw.cpp

90 lines
3.6 KiB
C++

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#include "opencv2/datasets/fr_lfw.hpp"
#include <opencv2/core.hpp>
#include <cstdio>
#include <string>
#include <vector>
using namespace std;
using namespace cv;
using namespace cv::datasets;
int main(int argc, char *argv[])
{
const char *keys =
"{ help h usage ? | | show this message }"
"{ path p |true| path to dataset (lfw2 folder) }";
CommandLineParser parser(argc, argv, keys);
string path(parser.get<string>("path"));
if (parser.has("help") || path=="true")
{
parser.printMessage();
return -1;
}
Ptr<FR_lfw> dataset = FR_lfw::create();
dataset->load(path);
// ***************
// test contains two images and flag that they belong to one person.
// For example, let output splits number, test size and split 1, elements: 1, 301.
int numSplits = dataset->getNumSplits();
printf("splits number: %u\n", numSplits);
printf("test size: %u\n", (unsigned int)dataset->getTest().size());
FR_lfwObj *example = static_cast<FR_lfwObj *>(dataset->getTest()[0].get());
printf("first test, first image: %s\n", example->image1.c_str());
printf("first test, second image: %s\n", example->image2.c_str());
printf("first test, same: %s\n", example->same?"yes":"no");
example = static_cast<FR_lfwObj *>(dataset->getTest()[300].get());
printf("300 test, first image: %s\n", example->image1.c_str());
printf("300 test, second image: %s\n", example->image2.c_str());
printf("300 test, same: %s\n", example->same?"yes":"no");
return 0;
}