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昨日のWebカメラを動画データに置き換えました。重かったので、書き出した画像をつなげて動画にしてあります。
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#pragma once #include "ofMain.h" #include "ofFbo.h" #include "ofxBox2d.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) {}; ofFbo fbo; ofPixels pixels; ofImage save_image; ofxBox2d box2d; vector<shared_ptr<ofxBox2dCircle>> circles; vector<float> circles_life; vector<ofColor> circles_color; cv::VideoCapture cap; ofVec2f cap_size; cv::Mat pre_frame; cv::Mat frame; ofImage image; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofBackground(0); ofSetWindowTitle("Insta"); this->box2d.init(); this->box2d.setGravity(0, 50); this->box2d.createBounds(); this->box2d.setFPS(25); //this->box2d.registerGrabbing(); this->cap.open("city3.mp4"); this->cap_size = ofVec2f(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT)); this->cap_size *= 0.33; this->image.allocate(this->cap_size.x, this->cap_size.y, OF_IMAGE_COLOR); this->frame = cv::Mat(this->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0); this->fbo.allocate(ofGetWidth(), ofGetHeight()); } //-------------------------------------------------------------- void ofApp::update() { cv::Mat src; this->cap >> src; if (src.empty()) { return; } cv::flip(src, src, 1); cv::cvtColor(src, src, cv::COLOR_BGR2RGB); cv::resize(src, this->frame, cv::Size(this->cap_size.x, this->cap_size.y)); float span = 10; if(ofGetFrameNum() > 10) { cv::Mat gap = this->pre_frame - this->frame; vector<ofVec2f> gap_points; for (int y = 0; y < gap.rows; y += span) { cv::Vec3b* value = gap.ptr<cv::Vec3b>(y, 0); for (int x = 0; x < gap.cols; x += span) { cv::Vec3b v = value[x]; if ((v[0] + v[1] + v[2]) > 32) { shared_ptr<ofxBox2dCircle> circle = shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle); circle.get()->setPhysics(3.0, 0.5, 0.1); circle.get()->setup(this->box2d.getWorld(), x + ofGetWidth() / 2 - this->image.getWidth() / 2 + ofRandom(-span / 2, span / 2), y + 30 + ofRandom(-span / 2, span / 2), span / 4); this->circles.push_back(circle); this->circles_life.push_back(255); ofColor c; c.setHsb(ofRandom(255), 220, 220); this->circles_color.push_back(c); } } } } this->frame.copyTo(this->pre_frame); this->image.update(); this->fbo.begin(); ofClear(0); ofBackground(0); ofSetColor(255); this->image.draw(ofGetWidth() / 2 - this->image.getWidth() / 2, 30); for (int i = this->circles.size() - 1; i >= 0; i--) { this->circles_life[i] -= 8; if (this->circles_life[i] < 0) { this->circles[i].get()->destroy(); this->circles.erase(this->circles.begin() + i); this->circles_life.erase(this->circles_life.begin() + i); this->circles_color.erase(this->circles_color.begin() + i); } else { ofSetColor(this->circles_color[i], this->circles_life[i] + 128); ofDrawCircle(this->circles[i].get()->getPosition(), this->circles[i].get()->getRadius()); } } this->fbo.end(); //this->fbo.readToPixels(pixels); //this->save_image.setFromPixels(pixels); //this->save_image.save(std::to_string(ofGetFrameNum()) + ".png", OF_IMAGE_QUALITY_BEST); this->box2d.update(); } //-------------------------------------------------------------- void ofApp::draw() { this->fbo.draw(0, 0); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |