camera – ページ 6 – プログラミング de 落描き

2018年2月13日2018年2月12日

再帰モザイク × 風景画 openFrameworks OpenCV

[ Video ]

[ About ]
昨日の動画にかけたエフェクトを静止画にかけてみました。

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"
#include "RecuRect.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) {};

	RecuRect r_rect;

	cv::VideoCapture cap;
	cv::Mat frame;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

#include "RecuRect.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) {};

RecuRect r_rect;

cv::VideoCapture cap;

cv::Mat frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->frame = cv::imread("D:\\video\\image.jpg");
}

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

	this->r_rect = RecuRect(9, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 1280, true);
	this->r_rect.update();
}

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

	r_rect.draw(this->frame);
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->frame = cv::imread("D:\\video\\image.jpg");

}

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

void ofApp::update() {

this->r_rect = RecuRect(9, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 1280, true);

this->r_rect.update();

}

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

void ofApp::draw() {

r_rect.draw(this->frame);

}

//========================================================================

int main() {

ofSetupOpenGL(1280, 1280, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

class RecuRect
{
public:
	RecuRect();
	RecuRect(int level, ofVec2f location, float size, bool origin = false);
	~RecuRect();

	void update();
	void draw(cv::Mat frame);
private:
	int level;
	ofVec2f location;
	float size;
	int type;
	bool origin;

	std::vector<RecuRect> rects;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

class RecuRect

{

public:

RecuRect();

RecuRect(int level, ofVec2f location, float size, bool origin = false);

~RecuRect();

void update();

void draw(cv::Mat frame);

private:

int level;

ofVec2f location;

float size;

int type;

bool origin;

std::vector<RecuRect> rects;

};

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

	//this->type = ofRandom(100);
	this->type = ofNoise(location.x * 0.005, location.y * 0.005, ofGetFrameNum() * 0.05) * 100;

	if (this->origin || (level > 0 && this->type < 80)) {

		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));
	}

	this->level = level;
	this->location = location;
	this->size = size;
	this->origin = origin;
}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

	if (this->origin || (this->level != 0 && this->type < 80)) {

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

			this->rects[i].draw(frame);
		}
	}
	else {

		cv::Vec3b frame_color = frame.at<cv::Vec3b>((int)this->location.y, (int)this->location.x);
		ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);
		ofSetColor(color);
		ofDrawRectangle(this->location, this->size, this->size);
	}
}

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

//this->type = ofRandom(100);

this->type = ofNoise(location.x * 0.005, location.y * 0.005, ofGetFrameNum() * 0.05) * 100;

if (this->origin || (level > 0 && this->type < 80)) {

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));

}

this->level = level;

this->location = location;

this->size = size;

this->origin = origin;

}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

if (this->origin || (this->level != 0 && this->type < 80)) {

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

this->rects[i].draw(frame);

}

else {

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

ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);

ofSetColor(color);

ofDrawRectangle(this->location, this->size, this->size);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180212

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2018年2月12日2018年2月12日

再帰モザイク openFrameworks

[ Video ]

[ About ]
WebCameraの映像を再帰でデフォルメしてみました。

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"
#include "RecuRect.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) {};

	RecuRect r_rect;

	cv::VideoCapture cap;
	cv::Mat frame;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

#include "RecuRect.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) {};

RecuRect r_rect;

cv::VideoCapture cap;

cv::Mat frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetLineWidth(0.3);

	this->cap.open(1);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 640);
}

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

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

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

	if (ofGetFrameNum() % 90 == 0) {

		this->r_rect = RecuRect(8, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 640, true);
	}

	this->r_rect.update();
}

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

	r_rect.draw(this->frame);
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetLineWidth(0.3);

this->cap.open(1);

this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 640);

}

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

void ofApp::update() {

this->cap >> this->frame;

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

return;

}

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

if (ofGetFrameNum() % 90 == 0) {

this->r_rect = RecuRect(8, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 640, true);

}

this->r_rect.update();

}

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

void ofApp::draw() {

r_rect.draw(this->frame);

}

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

class RecuRect
{
public:
	RecuRect();
	RecuRect(int level, ofVec2f location, float size, bool origin = false);
	~RecuRect();

	void update();
	void draw(cv::Mat frame);
private:
	int level;
	ofVec2f location;
	float size;
	int type;
	bool origin;

	std::vector<RecuRect> rects;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

class RecuRect

{

public:

RecuRect();

RecuRect(int level, ofVec2f location, float size, bool origin = false);

~RecuRect();

void update();

void draw(cv::Mat frame);

private:

int level;

ofVec2f location;

float size;

int type;

bool origin;

std::vector<RecuRect> rects;

};

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

	if (level > 0) {

		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));
	}

	this->level = level;
	this->location = location;
	this->size = size;
	this->type = ofRandom(100);
	this->origin = origin;
}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

	if (this->origin || (this->level != 0 && this->type < 80)) {

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

			this->rects[i].draw(frame);
		}
	}
	else {

		cv::Vec3b frame_color = frame.at<cv::Vec3b>((int)this->location.y, (int)this->location.x);
		ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);
		ofSetColor(color);
		ofDrawRectangle(this->location, this->size, this->size);
	}
}

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

if (level > 0) {

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));

}

this->level = level;

this->location = location;

this->size = size;

this->type = ofRandom(100);

this->origin = origin;

}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

if (this->origin || (this->level != 0 && this->type < 80)) {

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

this->rects[i].draw(frame);

}

else {

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

ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);

ofSetColor(color);

ofDrawRectangle(this->location, this->size, this->size);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180211

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2018年2月3日2018年2月2日

OpenCVでフレームの差分をとってParticle生成 openFrameworks ofxBox2d OpenCV

[ Video ]

[ About ]
OpenCVでWebカメラの映像を取得、毎フレームの差分を取得して、その情報をもとにParticleを生成しています。画像に動きのある部分からカラフルな玉が発生します。

本当はもうちょっと細かな粒子のようなものや、映像の色を反映した破片のようなオブジェクトを作りたかったのですが、リアルタイムだと処理性能的に厳しかったです。また今度、MPEGファイルから生成するような形で試してみようと思います。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofFbo.h"

#include "ofxBox2d.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) {};

	ofFbo fbo;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<ofColor> circles_color;
	
	cv::VideoCapture cap;
	cv::Mat pre_frame;
	cv::Mat frame;
	ofImage image;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.h"

#include "ofxBox2d.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) {};

ofFbo fbo;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<ofColor> circles_color;

cv::VideoCapture cap;

cv::Mat pre_frame;

cv::Mat frame;

ofImage image;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(30);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	//this->box2d.createBounds();
	this->box2d.setFPS(30);
	//this->box2d.registerGrabbing();

	this->cap.open(1);
	this->image.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->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);
	
	this->fbo.allocate(ofGetWidth(), ofGetHeight());
}

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

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


	float span = 15;
	if (ofGetFrameNum() > 10) {

		cv::Mat gap = this->pre_frame - src;
		vector<ofVec2f> gap_points;

		for (int y = 0; y < gap.rows; y += span) {

			cv::Vec3b* value = gap.ptr<cv::Vec3b>(y, 0);
			for (int x = 0; x < gap.cols; x += span) {

				cv::Vec3b v = value[x];
				if ((v[0] + v[1] + v[2]) > 32) {
					 
					shared_ptr<ofxBox2dCircle> circle = shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle);
					circle.get()->setPhysics(3.0, 0.5, 0.1);
					circle.get()->setup(this->box2d.getWorld(), x + ofGetWidth() / 2 - this->image.getWidth() / 2 + ofRandom(-span / 2, span / 2), y + 30 + ofRandom(-span / 2, span / 2), span / 2);
					this->circles.push_back(circle);

					ofColor c;
					c.setHsb(ofRandom(255), 220, 220);
					this->circles_color.push_back(c);

				}
			}
		}
	}
	this->pre_frame = src;
	this->image.update();

	this->fbo.begin();
	ofClear(0);

	ofSetColor(255);
	this->image.draw(ofGetWidth() / 2 - this->image.getWidth() / 2, 30);

	for (int i = this->circles.size() - 1; i >= 0; i--) {
		
		if (this->circles[i].get()->getPosition().y > ofGetHeight()) {

			this->circles[i].get()->destroy();
			this->circles.erase(this->circles.begin() + i);
			this->circles_color.erase(this->circles_color.begin() + i);
		}
		else {

			ofSetColor(this->circles_color[i]);
			ofDrawCircle(this->circles[i].get()->getPosition(), this->circles[i].get()->getRadius());
		}
	}

	this->fbo.end();

	this->box2d.update();
}

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

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofBackground(0);

ofSetWindowTitle("Insta");

this->box2d.init();

this->box2d.setGravity(0, 50);

//this->box2d.createBounds();

this->box2d.setFPS(30);

//this->box2d.registerGrabbing();

this->cap.open(1);

this->image.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->image.getHeight(), this->image.getWidth(), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

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

}

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

void ofApp::update() {

cv::Mat src;

this->cap >> src;

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

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

float span = 15;

if (ofGetFrameNum() > 10) {

cv::Mat gap = this->pre_frame - src;

vector<ofVec2f> gap_points;

for (int y = 0; y < gap.rows; y += span) {

cv::Vec3b* value = gap.ptr<cv::Vec3b>(y, 0);

for (int x = 0; x < gap.cols; x += span) {

cv::Vec3b v = value[x];

if ((v[0] + v[1] + v[2]) > 32) {

shared_ptr<ofxBox2dCircle> circle = shared_ptr<ofxBox2dCircle>(new ofxBox2dCircle);

circle.get()->setPhysics(3.0, 0.5, 0.1);

circle.get()->setup(this->box2d.getWorld(), x + ofGetWidth() / 2 - this->image.getWidth() / 2 + ofRandom(-span / 2, span / 2), y + 30 + ofRandom(-span / 2, span / 2), span / 2);

this->circles.push_back(circle);

ofColor c;

c.setHsb(ofRandom(255), 220, 220);

this->circles_color.push_back(c);

}

this->pre_frame = src;

this->image.update();

this->fbo.begin();

ofClear(0);

ofSetColor(255);

this->image.draw(ofGetWidth() / 2 - this->image.getWidth() / 2, 30);

for (int i = this->circles.size() - 1; i >= 0; i--) {

if (this->circles[i].get()->getPosition().y > ofGetHeight()) {

this->circles[i].get()->destroy();

this->circles.erase(this->circles.begin() + i);

this->circles_color.erase(this->circles_color.begin() + i);

}

else {

ofSetColor(this->circles_color[i]);

ofDrawCircle(this->circles[i].get()->getPosition(), this->circles[i].get()->getRadius());

}

this->fbo.end();

this->box2d.update();

}

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

void ofApp::draw() {

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180202

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