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Open Source Computer Vision Library
https://opencv.org/
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56 lines
2.2 KiB
56 lines
2.2 KiB
#include <opencv2/imgproc.hpp> // cv::FONT*, cv::LINE*, cv::FILLED |
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#include <opencv2/highgui.hpp> // imwrite |
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#include <opencv2/gapi.hpp> |
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#include <opencv2/gapi/render.hpp> |
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int main(int argc, char *argv[]) |
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{ |
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if (argc < 2) { |
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std::cerr << "Filename requried" << std::endl; |
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return 1; |
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} |
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const auto font = cv::FONT_HERSHEY_DUPLEX; |
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const auto blue = cv::Scalar{ 255, 0, 0}; // B/G/R |
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const auto green = cv::Scalar{ 0, 255, 0}; |
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const auto coral = cv::Scalar{0x81,0x81,0xF1}; |
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const auto white = cv::Scalar{ 255, 255, 255}; |
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cv::Mat test(cv::Size(480, 160), CV_8UC3, white); |
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namespace draw = cv::gapi::wip::draw; |
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std::vector<draw::Prim> prims; |
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prims.emplace_back(draw::Circle{ // CIRCLE primitive |
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{400,72}, // Position (a cv::Point) |
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32, // Radius |
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coral, // Color |
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cv::FILLED, // Thickness/fill type |
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cv::LINE_8, // Line type |
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0 // Shift |
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}); |
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prims.emplace_back(draw::Text{ // TEXT primitive |
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"Hello from G-API!", // Text |
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{64,96}, // Position (a cv::Point) |
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font, // Font |
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1.0, // Scale (size) |
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blue, // Color |
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2, // Thickness |
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cv::LINE_8, // Line type |
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false // Bottom left origin flag |
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}); |
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prims.emplace_back(draw::Rect{ // RECTANGLE primitive |
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{16,48,400,72}, // Geometry (a cv::Rect) |
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green, // Color |
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2, // Thickness |
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cv::LINE_8, // Line type |
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0 // Shift |
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}); |
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prims.emplace_back(draw::Mosaic{ // MOSAIC primitive |
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{320,96,128,32}, // Geometry (a cv::Rect) |
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16, // Cell size |
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0 // Decimation |
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}); |
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draw::render(test, prims); |
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cv::imwrite(argv[1], test); |
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return 0; |
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}
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