camera – プログラミング de 落描き

2021年1月11日2021年1月11日

Changing color ribbon art. Draw by openFrameworks

[ Video ]

[ About ]
Changing color ribbon art.

[ 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) {};

	ofEasyCam cam;
	ofMesh face, frame;
};

#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) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (int k = 0; k < 3; k++) {

		auto param = glm::vec3(15, 0, 0);
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto start_index = this->face.getNumVertices();

		ofColor color;
		for (int i = 0; i < 150; i++) {

			int index = this->face.getNumVertices();

			auto location = glm::vec3(
				ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),
				ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

			this->face.addVertex(location + param);
			this->face.addVertex(location - param);

			auto alpha = 255;
			color.setHsb((ofGetFrameNum() + i + k * 85) % 255, 180, 255, alpha);

			this->face.addColor(color);
			this->face.addColor(color);

			this->frame.addVertex(location + param);
			this->frame.addVertex(location - param);

			this->frame.addColor(ofColor(39, alpha));
			this->frame.addColor(ofColor(39, alpha));

			if (i > 0) {

				this->face.addIndex(index + 0); this->face.addIndex(index - 1); this->face.addIndex(index - 2);
				this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index - 1);

				this->frame.addIndex(index + 0); this->frame.addIndex(index - 2);
				this->frame.addIndex(index + 1); this->frame.addIndex(index - 1);
			}
		}

		this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
		this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2);
	}
}

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

	auto target = this->face.getVertex(this->face.getNumVertices() - 1);
	auto camera_location = this->face.getVertex(0) + glm::vec3(0, 0, 1200);

	this->cam.setPosition(camera_location);
	this->cam.setTarget(target);
	this->cam.lookAt(target);

	this->cam.begin();

	this->face.drawFaces();

	ofSetColor(239);
	this->frame.drawWireframe();

	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();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int k = 0; k < 3; k++) {

auto param = glm::vec3(15, 0, 0);

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto start_index = this->face.getNumVertices();

ofColor color;

for (int i = 0; i < 150; i++) {

int index = this->face.getNumVertices();

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500),

ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500));

this->face.addVertex(location + param);

this->face.addVertex(location - param);

auto alpha = 255;

color.setHsb((ofGetFrameNum() + i + k * 85) % 255, 180, 255, alpha);

this->face.addColor(color);

this->frame.addVertex(location + param);

this->frame.addVertex(location - param);

this->frame.addColor(ofColor(39, alpha));

if (i > 0) {

this->face.addIndex(index + 0); this->face.addIndex(index - 1); this->face.addIndex(index - 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index - 1);

this->frame.addIndex(index + 0); this->frame.addIndex(index - 2);

this->frame.addIndex(index + 1); this->frame.addIndex(index - 1);

}

this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);

this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2);

}

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

void ofApp::draw() {

auto target = this->face.getVertex(this->face.getNumVertices() - 1);

auto camera_location = this->face.getVertex(0) + glm::vec3(0, 0, 1200);

this->cam.setPosition(camera_location);

this->cam.setTarget(target);

this->cam.lookAt(target);

this->cam.begin();

this->face.drawFaces();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210111

2020年6月7日

Different times on the panel ( Image from WebCam ). Draw by openFrameworks

[ Video ]

[ About ]
Webカメラの撮影データをバッファして、パネルで異なる時間を表示。

Buffers the data captured by the webcam and displays different times on the panel.

[ 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;
	deque<cv::Mat> frame_list;
	int frame_list_count;
	
	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;

deque<cv::Mat> frame_list;

int frame_list_count;

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);
	ofSetColor(255);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_size = cv::Size(640, 360);
	this->frame_list_count = 90;

	this->cap.open(0);
	this->cap.set(cv::CAP_PROP_FPS, 30);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, this->cap_size.width);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, this->cap_size.height);

	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);
		}
	}
}

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

	ofSeedRandom(39);

	cv::Mat frame, blend;
	if (!this->cap.isOpened()) { return; }

	this->cap >> frame;
	if (frame.empty()) { return; }

	cv::cvtColor(frame, frame, cv::COLOR_RGB2BGR);
	cv::flip(frame, frame, 1);

	this->frame_list.push_front(frame);

	while (this->frame_list.size() > this->frame_list_count) {

		this->frame_list.pop_back();
	}
}

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

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

	float noise_seed = ofRandom(1000);
	for (int i = 0; i < this->rect_frames.size(); i++) {

		int frame_index = ofMap(ofNoise(noise_seed, this->cv_rects[i].x * 0.005, this->cv_rects[i].y * 0.005, ofGetFrameNum() * 0.01), 0, 1, 0, this->frame_list.size());

		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, 0), this->rect_size, this->rect_size, 5);
		this->rect_images[i]->unbind();

		ofSetColor(239);
		ofNoFill();
		ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0), this->rect_size, this->rect_size, 5);
	}

	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);

ofSetColor(255);

ofEnableDepthTest();

ofDisableArbTex();

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

this->frame_list_count = 90;

this->cap.open(0);

this->cap.set(cv::CAP_PROP_FPS, 30);

this->cap.set(cv::CAP_PROP_FRAME_WIDTH, this->cap_size.width);

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, this->cap_size.height);

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);

}

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

void ofApp::update() {

ofSeedRandom(39);

cv::Mat frame, blend;

if (!this->cap.isOpened()) { return; }

this->cap >> frame;

if (frame.empty()) { return; }

cv::cvtColor(frame, frame, cv::COLOR_RGB2BGR);

cv::flip(frame, frame, 1);

this->frame_list.push_front(frame);

while (this->frame_list.size() > this->frame_list_count) {

this->frame_list.pop_back();

}

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

void ofApp::draw() {

this->cam.begin();

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

float noise_seed = ofRandom(1000);

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

int frame_index = ofMap(ofNoise(noise_seed, this->cv_rects[i].x * 0.005, this->cv_rects[i].y * 0.005, ofGetFrameNum() * 0.01), 0, 1, 0, this->frame_list.size());

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, 0), this->rect_size, this->rect_size, 5);

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

ofSetColor(239);

ofNoFill();

ofDrawBox(glm::vec3(this->cv_rects[i].x, this->cap_size.height - this->cv_rects[i].y, 0), this->rect_size, this->rect_size, 5);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200607

2020年2月23日2020年2月23日

Edge man. openFrameworks

[ Video ]

[ About ]
エッジ男。

Edge man.

[ 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::Mat frame;
	cv::Mat save_frame;
	cv::Mat edge;

	ofImage frame_img;
	ofImage edge_img;
};

#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::Mat frame;

cv::Mat save_frame;

cv::Mat edge;

ofImage frame_img;

ofImage edge_img;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->cap.open(0);
	this->cap.set(cv::CAP_PROP_FPS, 30);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 1280);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 720);

	this->frame_img.allocate(this->cap.get(cv::CAP_PROP_FRAME_WIDTH), this->cap.get(cv::CAP_PROP_FRAME_HEIGHT), OF_IMAGE_COLOR);
	this->frame = cv::Mat(this->frame_img.getHeight(), this->frame_img.getWidth(), CV_MAKETYPE(CV_8UC3, this->frame_img.getPixels().getNumChannels()), this->frame_img.getPixels().getData(), 0);

	this->edge_img.allocate(this->cap.get(cv::CAP_PROP_FRAME_WIDTH), this->cap.get(cv::CAP_PROP_FRAME_HEIGHT), OF_IMAGE_GRAYSCALE);
	this->edge = cv::Mat(this->edge_img.getHeight(), this->edge_img.getWidth(), CV_MAKETYPE(CV_8U, this->edge_img.getPixels().getNumChannels()), this->edge_img.getPixels().getData(), 0);
}

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

	if (!this->cap.isOpened()) {
		
		return;
	}

	this->cap >> this->frame;

	if (this->frame.empty()) { 
		return; 
	}

	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);
	cv::flip(this->frame, this->frame, 1);

	if (ofGetFrameNum() == 0) { this->frame.copyTo(this->save_frame); }

	cv::Canny(this->frame, this->edge, 50, 200);

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

		unsigned char* value = &this->edge.at<unsigned char>(y, 0);
		for (int x = 0; x < this->edge.cols; x += 1) {

			if (*value > 0) {

				this->frame.at<cv::Vec3b>(y, x) = cv::Vec3b(0, 0, 0);
			}
			else {

				this->frame.at<cv::Vec3b>(y, x) = this->save_frame.at<cv::Vec3b>(y, x);
			}
			value++;
		}
	}

	this->frame_img.update();
	this->edge_img.update();
}

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

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

this->cap.open(0);

this->cap.set(cv::CAP_PROP_FPS, 30);

this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 1280);

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 720);

this->frame_img.allocate(this->cap.get(cv::CAP_PROP_FRAME_WIDTH), this->cap.get(cv::CAP_PROP_FRAME_HEIGHT), OF_IMAGE_COLOR);

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

this->edge_img.allocate(this->cap.get(cv::CAP_PROP_FRAME_WIDTH), this->cap.get(cv::CAP_PROP_FRAME_HEIGHT), OF_IMAGE_GRAYSCALE);

this->edge = cv::Mat(this->edge_img.getHeight(), this->edge_img.getWidth(), CV_MAKETYPE(CV_8U, this->edge_img.getPixels().getNumChannels()), this->edge_img.getPixels().getData(), 0);

}

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

void ofApp::update() {

if (!this->cap.isOpened()) {

return;

}

this->cap >> this->frame;

if (this->frame.empty()) {

return;

}

cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);

cv::flip(this->frame, this->frame, 1);

if (ofGetFrameNum() == 0) { this->frame.copyTo(this->save_frame); }

cv::Canny(this->frame, this->edge, 50, 200);

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

unsigned char* value = &this->edge.at<unsigned char>(y, 0);

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

if (*value > 0) {

this->frame.at<cv::Vec3b>(y, x) = cv::Vec3b(0, 0, 0);

}

else {

this->frame.at<cv::Vec3b>(y, x) = this->save_frame.at<cv::Vec3b>(y, x);

}

value++;

}

this->frame_img.update();

this->edge_img.update();

}

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

void ofApp::draw() {

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

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200223

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