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@ -7,10 +7,10 @@ |
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using namespace std; |
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using namespace cv; |
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void getMatWithQRCodeContour(Mat &color_image, vector<Point> transform); |
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void getMatWithFPS(Mat &color_image, double fps); |
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int liveQRCodeDetect(); |
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int showImageQRCodeDetect(string in, string out); |
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static void drawQRCodeContour(Mat &color_image, vector<Point> transform); |
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static void drawFPS(Mat &color_image, double fps); |
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static int liveQRCodeDetect(const string& out_file); |
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static int imageQRCodeDetect(const string& in_file, const string& out_file); |
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int main(int argc, char *argv[]) |
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{ |
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@ -28,7 +28,9 @@ int main(int argc, char *argv[]) |
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} |
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string in_file_name = cmd_parser.get<string>("in"); // input path to image
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string out_file_name = cmd_parser.get<string>("out"); // output path to image
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string out_file_name; |
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if (cmd_parser.has("out")) |
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out_file_name = cmd_parser.get<string>("out"); // output path to image
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if (!cmd_parser.check()) |
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{ |
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@ -39,16 +41,16 @@ int main(int argc, char *argv[]) |
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int return_code = 0; |
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if (in_file_name.empty()) |
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{ |
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return_code = liveQRCodeDetect(); |
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return_code = liveQRCodeDetect(out_file_name); |
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} |
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else |
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{ |
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return_code = showImageQRCodeDetect(in_file_name, out_file_name); |
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return_code = imageQRCodeDetect(samples::findFile(in_file_name), out_file_name); |
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} |
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return return_code; |
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} |
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void getMatWithQRCodeContour(Mat &color_image, vector<Point> transform) |
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void drawQRCodeContour(Mat &color_image, vector<Point> transform) |
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{ |
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if (!transform.empty()) |
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{ |
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@ -70,19 +72,19 @@ void getMatWithQRCodeContour(Mat &color_image, vector<Point> transform) |
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} |
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} |
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void getMatWithFPS(Mat &color_image, double fps) |
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void drawFPS(Mat &color_image, double fps) |
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{ |
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ostringstream convert; |
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convert << cvRound(fps) << " FPS."; |
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convert << cvRound(fps) << " FPS (QR detection)"; |
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putText(color_image, convert.str(), Point(25, 25), FONT_HERSHEY_DUPLEX, 1, Scalar(0, 0, 255), 2); |
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} |
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int liveQRCodeDetect() |
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int liveQRCodeDetect(const string& out_file) |
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{ |
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VideoCapture cap(0); |
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if(!cap.isOpened()) |
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{ |
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cout << "Cannot open a camera" << '\n'; |
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cout << "Cannot open a camera" << endl; |
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return -4; |
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} |
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@ -94,7 +96,11 @@ int liveQRCodeDetect() |
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string decode_info; |
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vector<Point> transform; |
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cap >> frame; |
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if(frame.empty()) { break; } |
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if (frame.empty()) |
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{ |
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cout << "End of video stream" << endl; |
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break; |
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} |
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cvtColor(frame, src, COLOR_BGR2GRAY); |
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total.start(); |
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@ -102,24 +108,30 @@ int liveQRCodeDetect() |
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if (result_detection) |
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{ |
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decode_info = qrcode.decode(src, transform, straight_barcode); |
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if (!decode_info.empty()) { cout << decode_info << '\n'; } |
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if (!decode_info.empty()) { cout << decode_info << endl; } |
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} |
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total.stop(); |
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double fps = 1 / total.getTimeSec(); |
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total.reset(); |
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if (result_detection) { getMatWithQRCodeContour(frame, transform); } |
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getMatWithFPS(frame, fps); |
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if (result_detection) { drawQRCodeContour(frame, transform); } |
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drawFPS(frame, fps); |
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imshow("Live QR code detector", frame); |
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if( waitKey(30) > 0 ) { break; } |
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char c = (char)waitKey(30); |
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if (c == 27) |
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break; |
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if (c == ' ' && !out_file.empty()) |
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imwrite(out_file, frame); // TODO write original frame too
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} |
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return 0; |
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} |
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int showImageQRCodeDetect(string in, string out) |
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int imageQRCodeDetect(const string& in_file, const string& out_file) |
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{ |
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Mat src = imread(in, IMREAD_GRAYSCALE), straight_barcode; |
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Mat color_src = imread(in_file, IMREAD_COLOR), src; |
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cvtColor(color_src, src, COLOR_BGR2GRAY); |
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Mat straight_barcode; |
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string decoded_info; |
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vector<Point> transform; |
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const int count_experiments = 10; |
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@ -135,54 +147,40 @@ int showImageQRCodeDetect(string in, string out) |
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total.stop(); |
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transform_time += total.getTimeSec(); |
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total.reset(); |
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if (!result_detection) { break; } |
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if (!result_detection) |
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continue; |
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total.start(); |
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decoded_info = qrcode.decode(src, transform, straight_barcode); |
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total.stop(); |
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transform_time += total.getTimeSec(); |
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total.reset(); |
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if (decoded_info.empty()) { break; } |
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} |
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double fps = count_experiments / transform_time; |
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if (!result_detection) { cout << "QR code not found\n"; return -2; } |
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if (decoded_info.empty()) { cout << "QR code cannot be decoded\n"; return -3; } |
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Mat color_src = imread(in); |
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getMatWithQRCodeContour(color_src, transform); |
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getMatWithFPS(color_src, fps); |
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for(;;) |
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{ |
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imshow("Detect QR code on image", color_src); |
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if( waitKey(30) > 0 ) { break; } |
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} |
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if (!result_detection) |
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cout << "QR code not found" << endl; |
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if (decoded_info.empty()) |
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cout << "QR code cannot be decoded" << endl; |
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if (!out.empty()) |
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{ |
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getMatWithQRCodeContour(color_src, transform); |
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getMatWithFPS(color_src, fps); |
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drawQRCodeContour(color_src, transform); |
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drawFPS(color_src, fps); |
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cout << "Input image file path: " << in << '\n'; |
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cout << "Output image file path: " << out << '\n'; |
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cout << "Size: " << color_src.size() << '\n'; |
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cout << "FPS: " << fps << '\n'; |
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cout << "Decoded info: " << decoded_info << '\n'; |
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cout << "Input image file path: " << in_file << endl; |
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cout << "Output image file path: " << out_file << endl; |
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cout << "Size: " << color_src.size() << endl; |
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cout << "FPS: " << fps << endl; |
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cout << "Decoded info: " << decoded_info << endl; |
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vector<int> compression_params; |
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compression_params.push_back(IMWRITE_PNG_COMPRESSION); |
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compression_params.push_back(9); |
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try |
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if (!out_file.empty()) |
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{ |
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imwrite(out, color_src, compression_params); |
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imwrite(out_file, color_src); |
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} |
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catch (const cv::Exception& ex) |
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for(;;) |
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{ |
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cout << "Exception converting image to PNG format: "; |
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cout << ex.what() << '\n'; |
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return -3; |
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} |
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imshow("Detect QR code on image", color_src); |
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if (waitKey(0) == 27) |
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break; |
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} |
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return 0; |
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} |
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Alexander Alekhin
6 years ago
committed by
Alexander Alekhin