opencv – ページ 2 – プログラミング de 落描き

2021年10月10日

My artworks on cube. Draw by openFrameworks

[ Video ]

[ About ]
動画をランダムに投影したパネルをキューブ状に配置する。

Panels with randomly projected videos are arranged in a cube shape.

[ 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;

	cv::Mat frame;
	ofImage 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) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

cv::Mat frame;

ofImage image;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_size = cv::Size(180, 180);
	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 = 0;
	vector<string> file_path_list = {
		"D:\\tmp\\1.mp4",
		"D:\\tmp\\2.mp4",
		"D:\\tmp\\3.mp4",
		"D:\\tmp\\4.mp4",
		"D:\\tmp\\5.mp4",
		"D:\\tmp\\6.mp4",
		"D:\\tmp\\7.mp4",
		"D:\\tmp\\8.mp4",
	};

	for (auto& file_path : file_path_list) {

		this->cap.open(file_path);
		int frame_count = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
		for (int i = 0; i < frame_count; 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);
		}

		this->number_of_frames += frame_count;
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	for (int base_x = -300; base_x <= 300; base_x += 600) {

		for (int base_y = -300; base_y <= 300; base_y += 600) {

			ofPushMatrix();
			ofTranslate(base_x, base_y, 0);
			ofRotateZ(ofRandom(360) + ofGetFrameNum() * 0.3);
			ofRotateY(ofRandom(360) + ofGetFrameNum() * 0.3);
			ofRotateX(ofRandom(360) + ofGetFrameNum() * 0.3);

			for (int k = 0; k < 6; k++) {

				if (k > 0 && k < 4) { ofRotateY(90); }
				if (k == 4) { ofRotateX(90); }
				if (k == 5) { ofRotateX(180); }

				for (int x = -90; x <= 90; x += 180) {

					for (int y = -90; y <= 90; y += 180) {

						int frame_index = (int(ofRandom(this->number_of_frames)) + ofGetFrameNum()) % this->number_of_frames;
						this->frame_list[frame_index].copyTo(this->frame);
						this->image.update();

						ofSetColor(255);
						ofFill();
						this->image.getTexture().bind();
						ofDrawPlane(glm::vec3(x, y, 180), 180, 180);
						this->image.unbind();

						ofSetColor(139);
						ofNoFill();
						ofDrawRectangle(glm::vec3(x, y, 180), 180, 180);
					}
				}
			}

			ofPopMatrix();
		}
	}

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableDepthTest();

ofDisableArbTex();

this->cap_size = cv::Size(180, 180);

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 = 0;

vector<string> file_path_list = {

"D:\\tmp\\1.mp4",

"D:\\tmp\\2.mp4",

"D:\\tmp\\3.mp4",

"D:\\tmp\\4.mp4",

"D:\\tmp\\5.mp4",

"D:\\tmp\\6.mp4",

"D:\\tmp\\7.mp4",

"D:\\tmp\\8.mp4",

};

for (auto& file_path : file_path_list) {

this->cap.open(file_path);

int frame_count = this->cap.get(cv::CAP_PROP_FRAME_COUNT);

for (int i = 0; i < frame_count; 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);

}

this->number_of_frames += frame_count;

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

for (int base_x = -300; base_x <= 300; base_x += 600) {

for (int base_y = -300; base_y <= 300; base_y += 600) {

ofPushMatrix();

ofTranslate(base_x, base_y, 0);

ofRotateZ(ofRandom(360) + ofGetFrameNum() * 0.3);

ofRotateY(ofRandom(360) + ofGetFrameNum() * 0.3);

ofRotateX(ofRandom(360) + ofGetFrameNum() * 0.3);

for (int k = 0; k < 6; k++) {

if (k > 0 && k < 4) { ofRotateY(90); }

if (k == 4) { ofRotateX(90); }

if (k == 5) { ofRotateX(180); }

for (int x = -90; x <= 90; x += 180) {

for (int y = -90; y <= 90; y += 180) {

int frame_index = (int(ofRandom(this->number_of_frames)) + ofGetFrameNum()) % this->number_of_frames;

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

this->image.update();

ofSetColor(255);

ofFill();

this->image.getTexture().bind();

ofDrawPlane(glm::vec3(x, y, 180), 180, 180);

this->image.unbind();

ofSetColor(139);

ofNoFill();

ofDrawRectangle(glm::vec3(x, y, 180), 180, 180);

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211010

2021年10月2日

Partially rotate the two movies. Draw by openFrameworks

[ Video ]

[ About ]
世界一かわいい猫が同時に楽しめます。

You can enjoy the world’s cutest cat at the same time.

[ 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_1, cap_2;
	cv::Size cap_size;
	int number_of_frames_1, number_of_frames_2;
	vector<cv::Mat> frame_list_1, frame_list_2;

	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_1, cap_2;

cv::Size cap_size;

int number_of_frames_1, number_of_frames_2;

vector<cv::Mat> frame_list_1, frame_list_2;

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);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_1.open("D:\\MP4\\VN20210917_143130.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_1 = this->cap_1.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames_1; i++) {

		cv::Mat src, tmp;
		this->cap_1 >> src;
		if (src.empty()) {

			return;
		}

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

		this->frame_list_1.push_back(tmp);
	}

	this->cap_2.open("D:\\MP4\\MOV_0324.mp4");
	this->number_of_frames_2 = this->cap_2.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames_2; i++) {

		cv::Mat src, tmp;
		this->cap_2 >> src;
		if (src.empty()) {

			return;
		}

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

		this->frame_list_2.push_back(tmp);
	}
}

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

}

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

	this->cam.begin();
	ofTranslate(this->cap_size.width * -0.5 + 20, this->cap_size.height * -0.5 - 20, 0);

	for (int i = 0; i < this->rect_frames.size(); i += 1) {

		ofPushMatrix();
		ofTranslate(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0);

		float noise_value = ofNoise(this->cv_rects[i].x * 0.0025, this->cv_rects[i].y * 0.0025, ofGetFrameNum() * 0.008);
		float deg = 0;
		if (noise_value <= 0.45) { deg = 0; }
		if (noise_value > 0.45 && noise_value < 0.55) { deg = ofMap(noise_value, 0.45, 0.55, 0, 180); }
		if (noise_value >= 0.55) { deg = 180; }
		
		ofRotateY(deg);

		int frame_index = ofGetFrameNum() % this->number_of_frames_1;

		cv::Mat tmp_box_image_1(this->frame_list_1[frame_index], this->cv_rects[i]);
		tmp_box_image_1.copyTo(this->rect_frames[i]);

		this->rect_images[i]->update();
		this->rect_images[i]->getTexture().bind();
		ofSetColor(255);
		ofFill();
		ofDrawBox(glm::vec3(0, 0, 1), this->rect_size, this->rect_size, 1);
		this->rect_images[i]->unbind();

		ofSetColor(39);
		ofNoFill();
		ofDrawBox(glm::vec3(0, 0, 1), this->rect_size, this->rect_size, 1);

		ofPopMatrix();
	}

	for (int i = 0; i < this->rect_frames.size(); i += 1){

		ofPushMatrix();
		ofTranslate(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0);

		float noise_value = ofNoise(this->cv_rects[i].x * 0.0025, this->cv_rects[i].y * 0.0025, ofGetFrameNum() * 0.008);
		float deg = 0;
		if (noise_value <= 0.45) { deg = 0; }
		if (noise_value > 0.45 && noise_value < 0.55) { deg = ofMap(noise_value, 0.45, 0.55, 0, 180); }
		if (noise_value >= 0.55) { deg = 180; }

		ofRotateY(deg);

		int frame_index = ofGetFrameNum() % this->number_of_frames_2;

		cv::Mat tmp_box_image_2(this->frame_list_2[frame_index], this->cv_rects[i]);
		tmp_box_image_2.copyTo(this->rect_frames[i]);

		this->rect_images[i]->update();
		this->rect_images[i]->getTexture().bind();
		ofSetColor(255);
		ofFill();
		ofDrawBox(glm::vec3(0, 0, -1), this->rect_size, this->rect_size, 1);
		this->rect_images[i]->unbind();

		ofSetColor(39);
		ofNoFill();
		ofDrawBox(glm::vec3(0, 0, -1), this->rect_size, this->rect_size, 1);

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

ofDisableArbTex();

this->cap_1.open("D:\\MP4\\VN20210917_143130.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_1 = this->cap_1.get(cv::CAP_PROP_FRAME_COUNT);

for (int i = 0; i < this->number_of_frames_1; i++) {

cv::Mat src, tmp;

this->cap_1 >> src;

if (src.empty()) {

return;

}

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

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

this->frame_list_1.push_back(tmp);

}

this->cap_2.open("D:\\MP4\\MOV_0324.mp4");

this->number_of_frames_2 = this->cap_2.get(cv::CAP_PROP_FRAME_COUNT);

for (int i = 0; i < this->number_of_frames_2; i++) {

cv::Mat src, tmp;

this->cap_2 >> src;

if (src.empty()) {

return;

}

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

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

this->frame_list_2.push_back(tmp);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(this->cap_size.width * -0.5 + 20, this->cap_size.height * -0.5 - 20, 0);

for (int i = 0; i < this->rect_frames.size(); i += 1) {

ofPushMatrix();

ofTranslate(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0);

float noise_value = ofNoise(this->cv_rects[i].x * 0.0025, this->cv_rects[i].y * 0.0025, ofGetFrameNum() * 0.008);

float deg = 0;

if (noise_value <= 0.45) { deg = 0; }

if (noise_value > 0.45 && noise_value < 0.55) { deg = ofMap(noise_value, 0.45, 0.55, 0, 180); }

if (noise_value >= 0.55) { deg = 180; }

ofRotateY(deg);

int frame_index = ofGetFrameNum() % this->number_of_frames_1;

cv::Mat tmp_box_image_1(this->frame_list_1[frame_index], this->cv_rects[i]);

tmp_box_image_1.copyTo(this->rect_frames[i]);

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

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

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(0, 0, 1), this->rect_size, this->rect_size, 1);

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

ofSetColor(39);

ofNoFill();

ofDrawBox(glm::vec3(0, 0, 1), this->rect_size, this->rect_size, 1);

ofPopMatrix();

}

for (int i = 0; i < this->rect_frames.size(); i += 1){

ofPushMatrix();

ofTranslate(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0);

float noise_value = ofNoise(this->cv_rects[i].x * 0.0025, this->cv_rects[i].y * 0.0025, ofGetFrameNum() * 0.008);

float deg = 0;

if (noise_value <= 0.45) { deg = 0; }

if (noise_value > 0.45 && noise_value < 0.55) { deg = ofMap(noise_value, 0.45, 0.55, 0, 180); }

if (noise_value >= 0.55) { deg = 180; }

ofRotateY(deg);

int frame_index = ofGetFrameNum() % this->number_of_frames_2;

cv::Mat tmp_box_image_2(this->frame_list_2[frame_index], this->cv_rects[i]);

tmp_box_image_2.copyTo(this->rect_frames[i]);

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

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

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(0, 0, -1), this->rect_size, this->rect_size, 1);

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

ofSetColor(39);

ofNoFill();

ofDrawBox(glm::vec3(0, 0, -1), this->rect_size, this->rect_size, 1);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211002

2021年9月23日2021年9月24日

Random hexagon walker with shadow. Draw by openFrameworks

[ Video ]

[ About ]
OpenCVのぼかしで影を作って浮いている感じにする。

Use OpenCV’s blur to create shadows to make it look like it’s floating.

[ 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 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) {};

	float radius;
	vector<vector<glm::vec2>> hexagon_list;
	vector<ofColor> base_color_list;

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#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 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) {};

float radius;

vector<vector<glm::vec2>> hexagon_list;

vector<ofColor> base_color_list;

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);

	this->radius = 15;
	vector<glm::vec2> start_location_list;
	auto x_span = this->radius * sqrt(3);
	auto flg = true;
	auto edge = 120;
	for (float y = edge; y < ofGetHeight() + this->radius - edge; y += this->radius * 1.5) {

		for (float x = edge; x < ofGetWidth() + this->radius - edge; x += x_span) {

			glm::vec2 location;
			if (flg) {

				location = glm::vec2(x, y);
			}
			else {

				location = glm::vec2(x + (this->radius * sqrt(3) / 2), y);
			}

			start_location_list.push_back(location);
		}
		flg = !flg;
	}

	for (int i = 0; i < 10; i++) {

		int r = ofRandom(start_location_list.size());

		auto log_list = vector<glm::vec2>();
		log_list.push_back(start_location_list[r]);
		this->hexagon_list.push_back(log_list);
	}

	ofColor color;
	vector<int> hex_list = { 0xee6352, 0x59cd90, 0x3fa7d6, 0xfac05e, 0xf79d84 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}

	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	auto span = this->radius * sqrt(3);
	auto edge = 120;
	for (auto& log_list : this->hexagon_list) {

		int r = ofRandom(6);
		int deg_start = r * 60;
		for (int deg = deg_start; deg < deg_start + 360; deg += 60) {

			auto tmp_location = log_list.back() + glm::vec2(span * cos(deg * DEG_TO_RAD), span * sin(deg * DEG_TO_RAD));
			if (tmp_location.x < edge || tmp_location.x > ofGetWidth() + this->radius - edge || tmp_location.y < edge || tmp_location.y > ofGetHeight() + this->radius - edge) {

				continue;
			}

			log_list.push_back(tmp_location);
			break;
		}

		while (log_list.size() > 10) {

			log_list.erase(log_list.begin());
		}
	}

	this->fbo.begin();
	ofClear(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	int color_index = 0;
	for (auto& log_list : this->hexagon_list) {

		for (int i = 0; i < log_list.size(); i++) {

			vector<glm::vec2> vertices;
			for (auto deg = 90; deg < 450; deg += 60) {

				vertices.push_back(log_list[i] + glm::vec2(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD)));
			}

			ofFill();
			ofSetColor(this->base_color_list[color_index % this->base_color_list.size()]);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(255);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}

		color_index++;
	}

	ofDisableBlendMode();

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::Mat gray_mat, bit_mat;
	cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGB2GRAY);
	for (int y = 0; y < this->pixels_mat.cols; y++) {

		for (int x = 0; x < this->pixels_mat.rows; x++) {

			if (gray_mat.at<unsigned char>(y, x) > 0) {

				this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(139, 139, 139, 255);
			}
		}
	}

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);
}

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

	ofSetColor(255);

	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(0, 0);

	this->fbo.draw(-15, -15);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

this->radius = 15;

vector<glm::vec2> start_location_list;

auto x_span = this->radius * sqrt(3);

auto flg = true;

auto edge = 120;

for (float y = edge; y < ofGetHeight() + this->radius - edge; y += this->radius * 1.5) {

for (float x = edge; x < ofGetWidth() + this->radius - edge; x += x_span) {

glm::vec2 location;

if (flg) {

location = glm::vec2(x, y);

}

else {

location = glm::vec2(x + (this->radius * sqrt(3) / 2), y);

}

start_location_list.push_back(location);

}

flg = !flg;

}

for (int i = 0; i < 10; i++) {

int r = ofRandom(start_location_list.size());

auto log_list = vector<glm::vec2>();

log_list.push_back(start_location_list[r]);

this->hexagon_list.push_back(log_list);

}

ofColor color;

vector<int> hex_list = { 0xee6352, 0x59cd90, 0x3fa7d6, 0xfac05e, 0xf79d84 };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

auto span = this->radius * sqrt(3);

auto edge = 120;

for (auto& log_list : this->hexagon_list) {

int r = ofRandom(6);

int deg_start = r * 60;

for (int deg = deg_start; deg < deg_start + 360; deg += 60) {

auto tmp_location = log_list.back() + glm::vec2(span * cos(deg * DEG_TO_RAD), span * sin(deg * DEG_TO_RAD));

if (tmp_location.x < edge || tmp_location.x > ofGetWidth() + this->radius - edge || tmp_location.y < edge || tmp_location.y > ofGetHeight() + this->radius - edge) {

continue;

}

log_list.push_back(tmp_location);

break;

}

while (log_list.size() > 10) {

log_list.erase(log_list.begin());

}

this->fbo.begin();

ofClear(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

int color_index = 0;

for (auto& log_list : this->hexagon_list) {

for (int i = 0; i < log_list.size(); i++) {

vector<glm::vec2> vertices;

for (auto deg = 90; deg < 450; deg += 60) {

vertices.push_back(log_list[i] + glm::vec2(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD)));

}

ofFill();

ofSetColor(this->base_color_list[color_index % this->base_color_list.size()]);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

color_index++;

}

ofDisableBlendMode();

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::Mat gray_mat, bit_mat;

cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGB2GRAY);

for (int y = 0; y < this->pixels_mat.cols; y++) {

for (int x = 0; x < this->pixels_mat.rows; x++) {

if (gray_mat.at<unsigned char>(y, x) > 0) {

this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(139, 139, 139, 255);

}

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);

}

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

void ofApp::draw() {

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(0, 0);

this->fbo.draw(-15, -15);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210923

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