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For PCD Japan 2021, we organize Daily Coding Week from Feb 13th! We made a "prompt list" as themes of the day, and those works tweeted with #PCD2021 by 23:59 (UTC+9) will be automatically included in our 3D online gallery! Use your favorite tool (not only p5/p5js) for submission! pic.twitter.com/WjcOwu1fnP
— PCD Japan (@PCD_Tokyo) February 11, 2021
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#include "ofMain.h" #include "opencv2/opencv.hpp" class ofApp : public ofBaseApp { public: void setup(); void update(); void draw(); void keyPressed(int key) {}; void keyReleased(int key) {}; void mouseMoved(int x, int y) {}; void mouseDragged(int x, int y, int button) {}; void mousePressed(int x, int y, int button) {}; void mouseReleased(int x, int y, int button) {}; void mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofTrueTypeFont font; cv::VideoCapture cap; cv::Size cap_size; cv::Mat gray; ofImage gray_image; cv::Mat edge; ofImage edge_image; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true); this->cap.open("D:\\MP4\\wave2.mp4"); this->cap_size = cv::Size(1280, 720); this->gray_image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_GRAYSCALE); this->gray = cv::Mat(this->gray_image.getHeight(), this->gray_image.getWidth(), CV_MAKETYPE(CV_8U, this->gray_image.getPixels().getNumChannels()), this->gray_image.getPixels().getData(), 0); this->edge_image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_GRAYSCALE); this->edge = cv::Mat(this->edge_image.getHeight(), this->edge_image.getWidth(), CV_MAKETYPE(CV_8U, this->edge_image.getPixels().getNumChannels()), this->edge_image.getPixels().getData(), 0); } //-------------------------------------------------------------- void ofApp::update() { cv::Mat cap_frame, resize_frame; this->cap >> cap_frame; if (cap_frame.empty()) { cap.set(cv::CAP_PROP_POS_FRAMES, 1); return; } cv::resize(cap_frame, resize_frame, this->cap_size); cv::cvtColor(resize_frame, this->gray, cv::COLOR_RGB2GRAY); this->gray.forEach<uchar>([](uchar& value, const int* position) -> void { value = floor(value / 50) * 50; }); cv::Canny(this->gray, this->edge, 10, 200); this->gray_image.update(); this->edge_image.update(); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofSetColor(239); string word = "PCD 2021"; this->font.drawStringAsShapes(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5); this->gray_image.draw(0, 0); this->edge_image.draw(0, 0); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |