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Open Source Computer Vision Library
https://opencv.org/
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69 lines
2.0 KiB
69 lines
2.0 KiB
#include <opencv2/gapi.hpp> |
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#include <opencv2/gapi/core.hpp> |
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#include <opencv2/gapi/cpu/core.hpp> |
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#include <opencv2/gapi/gframe.hpp> |
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#include <opencv2/gapi/media.hpp> |
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#include <opencv2/gapi/oak/oak.hpp> |
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#include <opencv2/gapi/streaming/format.hpp> // BGR accessor |
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#include <opencv2/highgui.hpp> // CommandLineParser |
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const std::string keys = |
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"{ h help | | Print this help message }" |
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"{ output | output.png | Path to the output file }"; |
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#ifdef HAVE_OAK |
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int main(int argc, char *argv[]) { |
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cv::CommandLineParser cmd(argc, argv, keys); |
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if (cmd.has("help")) { |
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cmd.printMessage(); |
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return 0; |
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} |
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const std::string output_name = cmd.get<std::string>("output"); |
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std::vector<int> h = {1, 0, -1, |
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2, 0, -2, |
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1, 0, -1}; |
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std::vector<int> v = { 1, 2, 1, |
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0, 0, 0, |
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-1, -2, -1}; |
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cv::Mat hk(3, 3, CV_32SC1, h.data()); |
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cv::Mat vk(3, 3, CV_32SC1, v.data()); |
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// Heterogeneous pipeline: |
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// OAK camera -> Sobel -> streaming accessor (CPU) |
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cv::GFrame in; |
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cv::GFrame sobel = cv::gapi::oak::sobelXY(in, hk, vk); |
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// Default camera and then sobel work only with nv12 format |
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cv::GMat out = cv::gapi::streaming::Y(sobel); |
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auto args = cv::compile_args(cv::gapi::oak::ColorCameraParams{}, |
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cv::gapi::oak::kernels()); |
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auto pipeline = cv::GComputation(cv::GIn(in), cv::GOut(out)).compileStreaming(std::move(args)); |
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// Graph execution ///////////////////////////////////////////////////////// |
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cv::Mat out_mat(1920, 1080, CV_8UC1); |
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pipeline.setSource(cv::gapi::wip::make_src<cv::gapi::oak::ColorCamera>()); |
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pipeline.start(); |
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// pull 1 frame |
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pipeline.pull(cv::gout(out_mat)); |
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cv::imwrite(output_name, out_mat); |
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std::cout << "Pipeline finished: " << output_name << " file has been written." << std::endl; |
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} |
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#else // HAVE_OAK |
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int main() { |
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GAPI_Assert(false && "Built without OAK support"); |
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return -1; |
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} |
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#endif // HAVE_OAK
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