noise – ページ 399 – プログラミング de 落描き

2018年1月20日2018年1月19日

時間の歪み　openFrmeworks opencv

[ Video ]

[ About ]
WebCameraからのImageを120Frame分を保存して、pixel単位で描写するFrame(0-120)を変えています。描写されるpixelのframe numberは、Noise(x, y, time)で計算されるので、隣接するpixel間で近い値を指しながら、時間経過と共に変化していきます。

ちなみに、下の小さいワイプ？がリアルタイムの映像です。Noiseによって決定されるFrameは0-120の間で加減算されていきますが、Imageは更新され続けていく(加算のみ)ので、何とも言えない不思議な雰囲気が出ているのではないでしょうか。我ながら面白い！(自画自賛)

Noiseだけじゃなくて、Kinectのような深度センサーの値を加味しても面白いかも。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBullet.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;
	static const int frame_number = 120;
	cv::Mat save_frame[frame_number];

	cv::Mat blend_frame;
	ofImage blend_image;

	cv::Mat wipe_frame;
	ofImage wipe_image;
};

#pragma once

#include "ofMain.h"

#include "ofxBullet.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;

static const int frame_number = 120;

cv::Mat save_frame[frame_number];

cv::Mat blend_frame;

ofImage blend_image;

cv::Mat wipe_frame;

ofImage wipe_image;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofEnableDepthTest();
	ofBackground(255);
	ofSetWindowTitle("Insta");

	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->cap.open(1);

	this->blend_image.allocate(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_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);

	this->wipe_image.allocate(this->cap.get(CV_CAP_PROP_FRAME_WIDTH) * 0.3, this->cap.get(CV_CAP_PROP_FRAME_HEIGHT) * 0.3, OF_IMAGE_COLOR);
	this->wipe_frame = cv::Mat(this->wipe_image.getHeight(), this->wipe_image.getWidth(), CV_MAKETYPE(CV_8UC3, this->wipe_image.getPixels().getNumChannels()), this->wipe_image.getPixels().getData(), 0);
}

//--------------------------------------------------------------
void ofApp::update() {
	cv::Mat src;
	this->cap >> src;
	cv::cvtColor(src, src, cv::COLOR_BGR2RGB);
	cv::flip(src, src, 1);

	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 * 0.002, y * 0.002, ofGetFrameNum() * 0.05) * 120;
				this->blend_frame.at<cv::Vec3b>(y, x) = this->save_frame[index].at<cv::Vec3b>(y, x);
			}
		}

		this->blend_image.update();

	}

	cv::resize(src, this->wipe_frame, cv::Size(), 0.3, 0.3);
	this->wipe_image.update();

	ofSetWindowTitle(std::to_string(ofGetFrameRate()));
}

//--------------------------------------------------------------
void ofApp::draw() {
	this->wipe_image.draw(ofGetWidth() / 2, ofGetHeight() / 2 + 250);

	if (ofGetFrameNum() > 120) {
		this->blend_image.draw(ofGetWidth() / 2, ofGetHeight() / 2 - 100);
	}
}

//========================================================================
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofEnableDepthTest();

ofBackground(255);

ofSetWindowTitle("Insta");

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->cap.open(1);

this->blend_image.allocate(this->cap.get(CV_CAP_PROP_FRAME_WIDTH), this->cap.get(CV_CAP_PROP_FRAME_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);

this->wipe_image.allocate(this->cap.get(CV_CAP_PROP_FRAME_WIDTH) * 0.3, this->cap.get(CV_CAP_PROP_FRAME_HEIGHT) * 0.3, OF_IMAGE_COLOR);

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

}

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

void ofApp::update() {

cv::Mat src;

this->cap >> src;

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

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

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 * 0.002, y * 0.002, ofGetFrameNum() * 0.05) * 120;

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

}

this->blend_image.update();

}

cv::resize(src, this->wipe_frame, cv::Size(), 0.3, 0.3);

this->wipe_image.update();

ofSetWindowTitle(std::to_string(ofGetFrameRate()));

}

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

void ofApp::draw() {

this->wipe_image.draw(ofGetWidth() / 2, ofGetHeight() / 2 + 250);

if (ofGetFrameNum() > 120) {

this->blend_image.draw(ofGetWidth() / 2, ofGetHeight() / 2 - 100);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180119

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2018年1月12日2018年1月16日

Processingで作成した落書きをopenFrameworksで再作

[ Video ]

[ About ]
去年の3月頃にProcessingで作成したものを、openFrameworksで作り直しました。

過去のソースを参考にしなが「これはいったい何をしている？？」というコードまるけで焦りましたが、それだけ自分が成長したという事にしましょう。(Processing版もリンクに置いておきます)

また、ソース見ると毎フレームごとに画像を保存しているコードがあるので、後でOpenCVなりで静止画を繋げて動画にしていますね。

今回のopenFrameworksではリアルタイムにキャプチャしたものをあげていますので、処理速度的な所は、やはりopenFrameworksの方が早いですね。(よーく見ると後半処理落ちしてはいますが)

ちなみに、球上の座標を毎フレーム記録していき、隣接する記録された座標同士で図形を繋げています。最終的に丸い氷状のものが出来て面白いかと。

[ 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 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) {};

	ofEasyCam cam;

	ofVec3f target;
	vector<ofVec3f> target_log;
};

#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 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) {};

ofEasyCam cam;

ofVec3f target;

vector<ofVec3f> target_log;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(0.5);
}

//--------------------------------------------------------------
void ofApp::update() {
	float x = ofMap(ofNoise(ofGetFrameNum() * 0.05), 0, 1, -10, 10);
	float y = ofMap(ofNoise(ofGetFrameNum() * 0.05 + 100), 0, 1, -10, 10);
	float z = ofMap(ofNoise(ofGetFrameNum() * 0.05 + 200), 0, 1, -10, 10);

	this->target = ofVec3f(x, y, z);
	this->target.normalize();
	this->target *= 250;

	this->target_log.push_back(this->target);

	if (this->target_log.size() > 1280) {
		this->target_log.clear();
	}
}

//--------------------------------------------------------------
void ofApp::draw() {
	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.5);
	ofRotateY(ofGetFrameNum() * 0.25);

	ofSetColor(255);
	ofDrawLine(this->target, ofVec3f());

	ofSetColor(255, 32);
	float distance;
	for (int i = 0; i < this->target_log.size(); i++) {
		vector<ofVec3f> near_points;

		for (int j = i; j < this->target_log.size(); j++) {
			distance = this->target_log[i].distanceSquared(this->target_log[j]);
			if (distance < 100 * 100) {
				near_points.push_back(this->target_log[j]);
			}
		}

		if (near_points.size() >= 3) {
			ofBeginShape();
			for (int j = 0; j < near_points.size(); j++){
				ofVertex(near_points[j]);
			}
			ofEndShape(true);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetLineWidth(0.5);

}

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

void ofApp::update() {

float x = ofMap(ofNoise(ofGetFrameNum() * 0.05), 0, 1, -10, 10);

float y = ofMap(ofNoise(ofGetFrameNum() * 0.05 + 100), 0, 1, -10, 10);

float z = ofMap(ofNoise(ofGetFrameNum() * 0.05 + 200), 0, 1, -10, 10);

this->target = ofVec3f(x, y, z);

this->target.normalize();

this->target *= 250;

this->target_log.push_back(this->target);

if (this->target_log.size() > 1280) {

this->target_log.clear();

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.5);

ofRotateY(ofGetFrameNum() * 0.25);

ofSetColor(255);

ofDrawLine(this->target, ofVec3f());

ofSetColor(255, 32);

float distance;

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

vector<ofVec3f> near_points;

for (int j = i; j < this->target_log.size(); j++) {

distance = this->target_log[i].distanceSquared(this->target_log[j]);

if (distance < 100 * 100) {

near_points.push_back(this->target_log[j]);

}

if (near_points.size() >= 3) {

ofBeginShape();

for (int j = 0; j < near_points.size(); j++){

ofVertex(near_points[j]);

}

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180111

Processing版
https://github.com/junkiyoshi/Insta20170318

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2018年1月11日2018年4月11日

ofxTrueTypeFontUCで日本語のフォントを使えるようにする openFrameworks

[ Video ]

[ About ]
ofxTrueTypeFontUCというAddonを入れて日本語取り扱えれるようにしました。
Install ofxTrueTypeFontUC. I can use Japanese.

※コードに誤りがあったため、修正します 2018/04/11

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxTrueTypeFontUC/src/ofxTrueTypeFontUC.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 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) {};

	ofxTrueTypeFontUC font;
	vector<ofTTFCharacter> word_paths;

	ofEasyCam cam;
	string word;
};

#pragma once

#include "ofMain.h"

#include "ofxTrueTypeFontUC/src/ofxTrueTypeFontUC.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 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) {};

ofxTrueTypeFontUC font;

vector<ofTTFCharacter> word_paths;

ofEasyCam cam;

string word;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	//ofNoFill();
	ofSetColor(0);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true);
	this->word = "純";
	this->word_paths = this->font.getStringAsPoints(this->word);
}

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

}

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

	this->cam.begin();
	
	// changed 2018/04/11 junkiyoshi
	//for (int w_index = 0; w_index < this->word.size(); w_index += 2) { // 日本語なので2Byte？？
	for (int w_index = 0; w_index < this->word_paths.size(); w_index++) {

		vector<ofPolyline> outline = word_paths[w_index].getOutline();
		ofVec3f center = outline[0].getCentroid2D();

		for (int o_index = 0; o_index < outline.size(); o_index++) {
			outline[o_index] = outline[o_index].getResampledBySpacing(3);
			vector<ofPoint> vertices = outline[o_index].getVertices();

			for (int v_index = 0; v_index < vertices.size() - 1; v_index++) {
				ofVec3f point_1 = vertices[v_index] - center;
				ofVec3f point_2 = vertices[v_index + 1] - center;
				
				float noise_value_1 = ofNoise(v_index * 0.01 + ofGetFrameNum() * 0.01);
				float noise_value_2 = ofNoise((v_index + 1) * 0.01 + ofGetFrameNum() * 0.01);

				if (noise_value_1 < 0.5) {
					noise_value_1 = 0.5;
				}
				if (noise_value_2 < 0.5) {
					noise_value_2 = 0.5;
				}

				noise_value_1 -= 0.5;
				noise_value_2 -= 0.5;

				ofBeginShape();
				ofVertex(point_1);
				ofVertex(point_2);
				ofVertex(point_2 + ofVec3f(0, 0, -300 * noise_value_2 + 1));
				ofVertex(point_1 + ofVec3f(0, 0, -300 * noise_value_1 + 1));
				ofEndShape(true);
			}
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

//ofNoFill();

ofSetColor(0);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 300, true, true);

this->word = "純";

this->word_paths = this->font.getStringAsPoints(this->word);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

// changed 2018/04/11 junkiyoshi

//for (int w_index = 0; w_index < this->word.size(); w_index += 2) { // 日本語なので2Byte？？

for (int w_index = 0; w_index < this->word_paths.size(); w_index++) {

vector<ofPolyline> outline = word_paths[w_index].getOutline();

ofVec3f center = outline[0].getCentroid2D();

for (int o_index = 0; o_index < outline.size(); o_index++) {

outline[o_index] = outline[o_index].getResampledBySpacing(3);

vector<ofPoint> vertices = outline[o_index].getVertices();

for (int v_index = 0; v_index < vertices.size() - 1; v_index++) {

ofVec3f point_1 = vertices[v_index] - center;

ofVec3f point_2 = vertices[v_index + 1] - center;

float noise_value_1 = ofNoise(v_index * 0.01 + ofGetFrameNum() * 0.01);

float noise_value_2 = ofNoise((v_index + 1) * 0.01 + ofGetFrameNum() * 0.01);

if (noise_value_1 < 0.5) {

noise_value_1 = 0.5;

}

if (noise_value_2 < 0.5) {

noise_value_2 = 0.5;

}

noise_value_1 -= 0.5;

noise_value_2 -= 0.5;

ofBeginShape();

ofVertex(point_1);

ofVertex(point_2);

ofVertex(point_2 + ofVec3f(0, 0, -300 * noise_value_2 + 1));

ofVertex(point_1 + ofVec3f(0, 0, -300 * noise_value_1 + 1));

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180110

ofxTrueTypeFontUC
https://github.com/hironishihara/ofxTrueTypeFontUC

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