daleclack/testing-repository
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testing-repository
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Update README

This commit is contained in:
daleclack 2022-08-07 14:46:36 +08:00
parent 3ee9eac8bf
commit 99338dad1c
2 changed files with 2 additions and 102 deletions
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102
OpenCV_test/test9_imagecapture/main.cpp
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@ -1,102 +0,0 @@
#include <opencv2/opencv.hpp>
#include "../../json_nlohmann/json.hpp"
#include <fstream>
#include <string>
#include <iostream>
using namespace cv;
using json = nlohmann::json;
int main(int argc, char **argv)
{
// Read Config from json file
std::string path, video_path;
bool save_video;
std::ifstream config_file("config_collect.json");
if (config_file.is_open())
{
json data = json::parse(config_file);
path = data["path"];
if (path[path.length() - 1] != '/')
{
path = path + "/";
}
video_path = data["video_path"];
save_video = data["save_video"];
}
else
{
path = "./";
save_video = false;
}
// Start Video Capture
bool CollectEnabled = false;
VideoCapture capture(0);
if (!capture.isOpened())
{
std::cout << "Can't open video device!" << std::endl;
return -1;
}
// properties
double rate = capture.get(CAP_PROP_FPS);
double width = capture.get(CAP_PROP_FRAME_WIDTH);
double height = capture.get(CAP_PROP_FRAME_HEIGHT);
// Save video
VideoWriter writer;
if (save_video)
{
writer = VideoWriter(video_path, VideoWriter::fourcc('m', 'p', '4', 'v'), rate, Size(width, height), true);
}
// Information about the camera
std::cout << "Frame Rate = " << rate << "width = " << width << "height = " << height << std::endl;
namedWindow("Video Capture", WINDOW_NORMAL);
Mat frame;
while (1)
{
// read frame from video capture
if (!capture.read(frame))
{
std::cout << "no video frame" << std::endl;
continue;
}
// Show the image of frame
imshow("Video Capture", frame);
// Write frame to file
static int count = 0;
if (CollectEnabled)
{
count++;
std::string filename = path + std::to_string(count) + ".jpg";
imwrite(filename, frame);
// write to video when it enabled
if (save_video)
{
writer.write(frame);
}
}
int c = waitKey(1000 / rate);
if (c == 27)
{
break;
}
if (c == 99)
{
CollectEnabled = !CollectEnabled;
}
}
capture.release();
writer.release();
destroyAllWindows();
return 0;
}

2
README.md
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@ -10,6 +10,8 @@
Thanks for the project author https://github.com/Makman2/GCR_CMake Thanks for the project author https://github.com/Makman2/GCR_CMake
and the author of json: https://github.com/nlohmann/json[GitHub - nlohmann/json: JSON for Modern C++](https://github.com/nlohmann/json)
The test for Qt5 is starting, and some example from the Qt opensource example. The test for Qt5 is starting, and some example from the Qt opensource example.
(Actually, I forked the project for convenience) (Actually, I forked the project for convenience)