opencv – ページ 23 – プログラミング de 落描き

2020年3月5日2020年3月5日

Ascii women. openFrameworks

[ Video ]

[ About ]
動画のピクセル値を文字に変換。

Changing video to Ascii.

[ Source ]

#pragma once
#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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	cv::VideoCapture cap;
	cv::Size cap_size;
	ofTrueTypeFont font;

	cv::Mat frame;
};

#pragma once

#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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

ofTrueTypeFont font;

cv::Mat frame;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(0);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->cap.open("D:\\Pexels Videos 2441067.mp4");
	this->cap_size = cv::Size(1280, 720);
	this->cap.set(cv::CAP_PROP_POS_FRAMES, 90 * 24); // Sec * FrameRate

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 5, true, true, true);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	cv::Mat src;
	this->cap >> src;
	if (src.empty()) {

		this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);
		return;
	}

	cv::resize(src, this->frame, this->cap_size);
	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2GRAY);
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	
	char moji[11] = { ' ', '#', 'M', 'W', 'A', 'B', 'G', 'C', 'L', 'I', 'T' };
	int value;
	for (int y = 0; y < this->frame.rows; y += 5) {

		for (int x = 0; x < this->frame.cols; x += 5) {
			
			value = this->frame.at<unsigned char>(y, x);
			if (value < 150) {

				this->font.drawStringAsShapes(string{ moji[(int)ofMap(value, 0, 150, 0, 11)] }, x - 640, 360 - y);
			}
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(0);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->cap.open("D:\\Pexels Videos 2441067.mp4");

this->cap_size = cv::Size(1280, 720);

this->cap.set(cv::CAP_PROP_POS_FRAMES, 90 * 24); // Sec * FrameRate

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 5, true, true, true);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

cv::Mat src;

this->cap >> src;

if (src.empty()) {

this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);

return;

}

cv::resize(src, this->frame, this->cap_size);

cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2GRAY);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

char moji[11] = { ' ', '#', 'M', 'W', 'A', 'B', 'G', 'C', 'L', 'I', 'T' };

int value;

for (int y = 0; y < this->frame.rows; y += 5) {

for (int x = 0; x < this->frame.cols; x += 5) {

value = this->frame.at<unsigned char>(y, x);

if (value < 150) {

this->font.drawStringAsShapes(string{ moji[(int)ofMap(value, 0, 150, 0, 11)] }, x - 640, 360 - y);

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200305

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2020年3月4日2020年3月4日

Scattered frames. openFrameworks

[ Video ]

[ About ]
フレームを散りばめる。

Scattered frames.

[ Source ]

#pragma once
#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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	ofImage image;
	cv::Mat frame;
	vector<ofMesh> mesh_list;
};

#pragma once

#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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

ofImage image;

cv::Mat frame;

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(255);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->cap.open("D:\\video\\image16.mp4");
	this->cap_size = cv::Size(256, 144);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	this->number_of_frames = 30 * 25; // Second * FrameRate
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}

	for (int i = 0; i < 128; i++) {

		ofMesh mesh;
		mesh.addVertex(glm::vec3(-128, -72, 0));
		mesh.addVertex(glm::vec3(128, -72, 0));
		mesh.addVertex(glm::vec3(128, 72, 0));
		mesh.addVertex(glm::vec3(-128, 72, 0));

		mesh.addTexCoord(glm::vec3(0, 0, 0));
		mesh.addTexCoord(glm::vec3(256, 0, 0));
		mesh.addTexCoord(glm::vec3(256, 144, 0));
		mesh.addTexCoord(glm::vec3(0, 144, 0));

		mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2);
		mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3);

		this->mesh_list.push_back(mesh);
	}
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateX(180);

	for (auto& mesh : this->mesh_list) {

		auto location = glm::vec3(ofRandom(-1280, 1280), ofRandom(-720, 720), 0);
		int n = ((int)ofMap(location.x, -1280, 1280, this->number_of_frames, 0) + ofGetFrameNum()) % this->number_of_frames;
		this->frame_list[n].copyTo(this->frame);
		this->image.update();

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360));

		ofFill();
		this->image.bind();
		mesh.draw();
		this->image.unbind();

		ofNoFill();
		ofDrawRectangle(0, 0, 256, 144);

		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(255);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->cap.open("D:\\video\\image16.mp4");

this->cap_size = cv::Size(256, 144);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

this->number_of_frames = 30 * 25; // Second * FrameRate

for (int i = 0; i < this->number_of_frames; i++) {

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

for (int i = 0; i < 128; i++) {

ofMesh mesh;

mesh.addVertex(glm::vec3(-128, -72, 0));

mesh.addVertex(glm::vec3(128, -72, 0));

mesh.addVertex(glm::vec3(128, 72, 0));

mesh.addVertex(glm::vec3(-128, 72, 0));

mesh.addTexCoord(glm::vec3(0, 0, 0));

mesh.addTexCoord(glm::vec3(256, 0, 0));

mesh.addTexCoord(glm::vec3(256, 144, 0));

mesh.addTexCoord(glm::vec3(0, 144, 0));

mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2);

mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

for (auto& mesh : this->mesh_list) {

auto location = glm::vec3(ofRandom(-1280, 1280), ofRandom(-720, 720), 0);

int n = ((int)ofMap(location.x, -1280, 1280, this->number_of_frames, 0) + ofGetFrameNum()) % this->number_of_frames;

this->frame_list[n].copyTo(this->frame);

this->image.update();

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360));

ofFill();

this->image.bind();

mesh.draw();

this->image.unbind();

ofNoFill();

ofDrawRectangle(0, 0, 256, 144);

ofPopMatrix();

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2020年3月2日2020年3月2日

Divide video and stack by frame. openFrameworks

[ Video ]

[ About ]
動画を分割・フレーム毎に積み重ねる。

Divide video and stack by frame.

[ Source ]

#pragma once
#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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	float rect_size;
	vector<cv::Mat> rect_frames;
	vector<unique_ptr<ofImage>> rect_images;
	vector<cv::Rect> cv_rects;
};

#pragma once

#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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

float rect_size;

vector<cv::Mat> rect_frames;

vector<unique_ptr<ofImage>> rect_images;

vector<cv::Rect> cv_rects;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap.open("image9.mp4");
	this->cap_size = cv::Size(640, 360);

	this->rect_size = 40;
	for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

		for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

			auto image = make_unique<ofImage>();
			image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);
			cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);
			cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

			this->rect_images.push_back(move(image));
			this->cv_rects.push_back(rect);
			this->rect_frames.push_back(frame);
		}
	}

	this->number_of_frames = 45;
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			return;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}
}

//--------------------------------------------------------------
void ofApp::update() {

}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofTranslate(this->cap_size.width * -0.5, this->cap_size.height * -0.5, -225);

	for (int i = 0; i < this->rect_frames.size(); i++) {

		int frame_max = ofMap(ofNoise(this->cv_rects[i].x * 0.0035, this->cv_rects[i].y * 0.0035, ofGetFrameNum() * 0.03), 0, 1, 0, 45);
		for (int frame_index = 0; frame_index < frame_max; frame_index++) {

			cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rects[i]);
			tmp_box_image.copyTo(this->rect_frames[i]);

			this->rect_images[i]->update();
			this->rect_images[i]->getTexture().bind();
			ofSetColor(255);
			ofFill();
			ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, frame_index * 10), this->rect_size, this->rect_size, 10);
			this->rect_images[i]->unbind();

			ofSetColor(39);
			ofNoFill();
			ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, frame_index * 10), this->rect_size, this->rect_size, 10);

			ofPopMatrix();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

ofDisableArbTex();

this->cap.open("image9.mp4");

this->cap_size = cv::Size(640, 360);

this->rect_size = 40;

for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

auto image = make_unique<ofImage>();

image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);

cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);

cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

this->rect_images.push_back(move(image));

this->cv_rects.push_back(rect);

this->rect_frames.push_back(frame);

}

this->number_of_frames = 45;

for (int i = 0; i < this->number_of_frames; i++) {

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

return;

}

cv::resize(src, tmp, this->cap_size);

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

//--------------------------------------------------------------

void ofApp::update() {

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofTranslate(this->cap_size.width * -0.5, this->cap_size.height * -0.5, -225);

for (int i = 0; i < this->rect_frames.size(); i++) {

int frame_max = ofMap(ofNoise(this->cv_rects[i].x * 0.0035, this->cv_rects[i].y * 0.0035, ofGetFrameNum() * 0.03), 0, 1, 0, 45);

for (int frame_index = 0; frame_index < frame_max; frame_index++) {

cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rects[i]);

tmp_box_image.copyTo(this->rect_frames[i]);

this->rect_images[i]->update();

this->rect_images[i]->getTexture().bind();

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, frame_index * 10), this->rect_size, this->rect_size, 10);

this->rect_images[i]->unbind();

ofSetColor(39);

ofNoFill();

ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, frame_index * 10), this->rect_size, this->rect_size, 10);

ofPopMatrix();

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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