junkiyoshi – ページ 922 – プログラミング de 落描き

2018年4月2日2018年4月1日

Line x Line openFrameworks

[ Video ]

[ About ]
春の陽気で酔っぱらいながらコーディング。思いつくままに。

[ Source ]

#pragma once
#include "ofMain.h"

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) {};
};

#pragma once

#include "ofMain.h"

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) {};

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");
}

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

	ofSeedRandom(39);
}

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

	ofColor line_color;
	int span = 50;
	float threshold = 0.35;
	float param_x = ofRandom(1000);
	float param_y = ofRandom(1000);

	for (int x = 0; x < ofGetWidth(); x += span) {

		float noise_value = ofNoise(param_x, x * 0.005, ofGetFrameNum() * 0.005);
		if (noise_value > threshold) {

			line_color.setHsb(ofMap(x, 0, ofGetWidth(), 0, 255), 239, 239);
			ofSetColor(line_color, ofMap(noise_value, threshold, 1.0, 0, 255));

			ofDrawLine(ofPoint(x, 0), ofPoint(x, ofGetHeight()));
		}
	}

	for (int y = 0; y < ofGetHeight(); y += span) {

		float noise_value = ofNoise(param_y, y * 0.005, ofGetFrameNum() * 0.005);
		if (noise_value > threshold) {

			line_color.setHsb(ofMap(y, 0, ofGetHeight(), 255, 0), 239, 239);
			ofSetColor(line_color, ofMap(noise_value, threshold, 1.0, 0, 255));

			ofDrawLine(ofPoint(0, y), ofPoint(ofGetWidth(), y));
		}
	}

	for (int x = 0; x < ofGetWidth(); x += 50) {

		for (int y = 0; y < ofGetHeight(); y += 50) {

			float noise_value_1 = ofNoise(param_x, x * 0.005, ofGetFrameNum() * 0.005);
			float noise_value_2 = ofNoise(param_y, y * 0.005, ofGetFrameNum() * 0.005);
			if (noise_value_1 > threshold && noise_value_2 > threshold) {

				ofColor color_1, color_2;
				color_1.setHsb(ofMap(x, 0, ofGetWidth(), 0, 255), 239, 239);
				color_2.setHsb(ofMap(y, 0, ofGetHeight(), 255, 0), 239, 239);
				ofColor blend_color = color_1 + color_2;

				ofSetColor(blend_color, ofMap(noise_value_1 > noise_value_2 ? noise_value_1 : noise_value_2, threshold, 1.0, 0, 255));
				ofDrawCircle(x, y, 5);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor line_color;

int span = 50;

float threshold = 0.35;

float param_x = ofRandom(1000);

float param_y = ofRandom(1000);

for (int x = 0; x < ofGetWidth(); x += span) {

float noise_value = ofNoise(param_x, x * 0.005, ofGetFrameNum() * 0.005);

if (noise_value > threshold) {

line_color.setHsb(ofMap(x, 0, ofGetWidth(), 0, 255), 239, 239);

ofSetColor(line_color, ofMap(noise_value, threshold, 1.0, 0, 255));

ofDrawLine(ofPoint(x, 0), ofPoint(x, ofGetHeight()));

}

for (int y = 0; y < ofGetHeight(); y += span) {

float noise_value = ofNoise(param_y, y * 0.005, ofGetFrameNum() * 0.005);

if (noise_value > threshold) {

line_color.setHsb(ofMap(y, 0, ofGetHeight(), 255, 0), 239, 239);

ofSetColor(line_color, ofMap(noise_value, threshold, 1.0, 0, 255));

ofDrawLine(ofPoint(0, y), ofPoint(ofGetWidth(), y));

}

for (int x = 0; x < ofGetWidth(); x += 50) {

for (int y = 0; y < ofGetHeight(); y += 50) {

float noise_value_1 = ofNoise(param_x, x * 0.005, ofGetFrameNum() * 0.005);

float noise_value_2 = ofNoise(param_y, y * 0.005, ofGetFrameNum() * 0.005);

if (noise_value_1 > threshold && noise_value_2 > threshold) {

ofColor color_1, color_2;

color_1.setHsb(ofMap(x, 0, ofGetWidth(), 0, 255), 239, 239);

color_2.setHsb(ofMap(y, 0, ofGetHeight(), 255, 0), 239, 239);

ofColor blend_color = color_1 + color_2;

ofSetColor(blend_color, ofMap(noise_value_1 > noise_value_2 ? noise_value_1 : noise_value_2, threshold, 1.0, 0, 255));

ofDrawCircle(x, y, 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180401

2018年4月1日2018年3月31日

お花見 openFrameworks OpenCV

[ Video ]

[ About ]
お花見日和だったので、散歩に出かけたら4時間ほど経っていました(笑)
近所の公園でとった動画をOpenCVで加工・動画出力、openFrameworksで描写しています。

[ 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) {};

	cv::VideoCapture cap;
	cv::VideoWriter writer;
	cv::Size cap_size;

	static const int frame_number = 60;
	cv::Mat save_frame[frame_number];

	cv::Mat blend_frame;
	ofImage blend_image;
};

#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) {};

cv::VideoCapture cap;

cv::VideoWriter writer;

cv::Size cap_size;

static const int frame_number = 60;

cv::Mat save_frame[frame_number];

cv::Mat blend_frame;

ofImage blend_image;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	this->cap.open("D:\\video\\MOV_0506.mp4");
	
	int fourcc = (int)this->cap.get(CV_CAP_PROP_FOURCC);
	double fps = this->cap.get(CV_CAP_PROP_FPS);
	cv::Size cap_size = cv::Size(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));

	this->writer = cv::VideoWriter("D:\\video\\out.mp4", fourcc, fps, cap_size);

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

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

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

		return;
	}
	cv::cvtColor(src, src, CV_RGB2BGR);

	if (ofGetFrameNum() < this->frame_number) {

		for (int i = ofGetFrameNum() - 1; i > 0; i--) {

			this->save_frame[i - 1].copyTo(this->save_frame[i]);
		}
		src.copyTo(this->save_frame[0]);
	}
	else {

		for (int i = this->frame_number - 1; i > 0; i--) {

			this->save_frame[i - 1].copyTo(this->save_frame[i]);
		}
		src.copyTo(this->save_frame[0]);
	}

	if (ofGetFrameNum() > this->frame_number) {

		for (int y = 0; y < this->blend_frame.rows; y += 1) {

			for (int x = 0; x < this->blend_frame.cols; x += 1) {

				int index = ofNoise(x * 0.003, y * 0.003, ofGetFrameNum() * 0.03) * this->frame_number;
				this->blend_frame.at<cv::Vec3b>(y, x) = this->save_frame[index].at<cv::Vec3b>(y, x);
			}
		}

		this->blend_image.update();
		cv::cvtColor(blend_frame, blend_frame, CV_RGB2BGR);
		writer << blend_frame;
	}
}

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

	if (ofGetFrameNum() > this->frame_number) {

		this->blend_image.draw(0, 0);
	}
}

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

	ofSetupOpenGL(1920, 1080, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

this->cap.open("D:\\video\\MOV_0506.mp4");

int fourcc = (int)this->cap.get(CV_CAP_PROP_FOURCC);

double fps = this->cap.get(CV_CAP_PROP_FPS);

cv::Size cap_size = cv::Size(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_HEIGHT));

this->writer = cv::VideoWriter("D:\\video\\out.mp4", fourcc, fps, cap_size);

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

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

}

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

void ofApp::update() {

cv::Mat src;

this->cap >> src;

if (src.empty()) {

return;

}

cv::cvtColor(src, src, CV_RGB2BGR);

if (ofGetFrameNum() < this->frame_number) {

for (int i = ofGetFrameNum() - 1; i > 0; i--) {

this->save_frame[i - 1].copyTo(this->save_frame[i]);

}

src.copyTo(this->save_frame[0]);

}

else {

for (int i = this->frame_number - 1; i > 0; i--) {

this->save_frame[i - 1].copyTo(this->save_frame[i]);

}

src.copyTo(this->save_frame[0]);

}

if (ofGetFrameNum() > this->frame_number) {

for (int y = 0; y < this->blend_frame.rows; y += 1) {

for (int x = 0; x < this->blend_frame.cols; x += 1) {

int index = ofNoise(x * 0.003, y * 0.003, ofGetFrameNum() * 0.03) * this->frame_number;

this->blend_frame.at<cv::Vec3b>(y, x) = this->save_frame[index].at<cv::Vec3b>(y, x);

}

this->blend_image.update();

cv::cvtColor(blend_frame, blend_frame, CV_RGB2BGR);

writer << blend_frame;

}

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

void ofApp::draw() {

if (ofGetFrameNum() > this->frame_number) {

this->blend_image.draw(0, 0);

}

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

int main() {

ofSetupOpenGL(1920, 1080, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180331

2018年3月31日2018年3月30日

廻る五角形 opneFrameworks

[ Video ]

[ About ]
五角形をグルっと回してみました。綺麗だけと、じーっと見てると酔うかも

[ Source ]

#pragma once
#include "ofMain.h"

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) {};

	void draw_pentagon(int radius);
};

#pragma once

#include "ofMain.h"

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) {};

void draw_pentagon(int radius);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofSetColor(39);
	ofSetLineWidth(3);
}

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

}

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

	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	int radius_span = 10;
	ofNoFill();
	for (int radius = ofGetWidth(); radius > radius_span; radius -= radius_span) {

		ofRotate(ofGetFrameNum() * -0.05);
		this->draw_pentagon(radius);
	}

	ofFill();
	this->draw_pentagon(radius_span * 2);
}

//--------------------------------------------------------------
void ofApp::draw_pentagon(int radius) {
	
	int deg_span = 72;
	ofBeginShape();
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofVertex(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
	}
	ofEndShape(true);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetColor(39);

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

int radius_span = 10;

ofNoFill();

for (int radius = ofGetWidth(); radius > radius_span; radius -= radius_span) {

ofRotate(ofGetFrameNum() * -0.05);

this->draw_pentagon(radius);

}

ofFill();

this->draw_pentagon(radius_span * 2);

}

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

void ofApp::draw_pentagon(int radius) {

int deg_span = 72;

ofBeginShape();

for (int deg = 0; deg < 360; deg += deg_span) {

ofVertex(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180330

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