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OpenCVを使って動画を読み込み、ピクセル単位でアクセスして色情報を元に文字化しました。何も思いつかずにこねくり回してたらこんなんになりました
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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::Mat cap_frame; ofImage cap_image; cv::Size cap_size; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(39); ofSetWindowTitle("Insta"); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 15); this->cap.open("D:\\video\\image2.mp4"); this->cap_size = cv::Size(1280, 720); this->cap_image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR); this->cap_frame = cv::Mat(this->cap_image.getHeight(), this->cap_image.getWidth(), CV_MAKETYPE(CV_8UC3, this->cap_image.getPixels().getNumChannels()), this->cap_image.getPixels().getData(), 0); } //-------------------------------------------------------------- void ofApp::update() { cv::Mat origin; this->cap >> origin; if (origin.empty()) { this->cap.set(CV_CAP_PROP_POS_FRAMES, 1); return; } cv::resize(origin, this->cap_frame, this->cap_size); cv::cvtColor(this->cap_frame, this->cap_frame, CV_BGR2RGB); this->cap_image.update(); } //-------------------------------------------------------------- void ofApp::draw() { vector<string> word = { "A", "B", "C", "D", "E", "F","G", "H", "I", "J", "K", "L","M", "N", "O", "P", "Q", "R", "S", "T","U", "V", "W", "X", "Y", "Z" }; for (int x = 0; x < this->cap_frame.cols; x += 15) { for (int y = 0; y < this->cap_frame.rows; y += 15) { ofColor color(this->cap_frame.at<cv::Vec3b>(y, x)[0], this->cap_frame.at<cv::Vec3b>(y, x)[1], this->cap_frame.at<cv::Vec3b>(y, x)[2]); ofSetColor(color); int moji_index = ofMap(color.getHue(), 0, 255, 0, word.size()); this->font.drawString(word[moji_index], x, y); } } //this->cap_image.draw(0, 0); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(1280, 720, OF_WINDOW); ofRunApp(new ofApp()); } |