2018年8月 – ページ 6 – プログラミング de 落描き

2018年8月16日2018年8月16日

Color to frame difference. openframeworks

[ Video ]

[ About ]
フレーム差分に対して着色

Color to frame difference.

[ 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) {};

	cv::VideoCapture cap;
	cv::Size cap_size;
	vector<cv::Mat> cap_frames;
	vector<unique_ptr<ofImage>> images;

	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 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) {};

cv::VideoCapture cap;

cv::Size cap_size;

vector<cv::Mat> cap_frames;

vector<unique_ptr<ofImage>> images;

cv::Mat blend_frame;

ofImage blend_image;

};

#include "ofApp.h"

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

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

	ofBackground(0);

	this->cap.open("D:\\video\\image26.mp4");
	this->cap_size = cv::Size(1280, 720);

	cv::Mat cap_frame;
	while (true) {

		this->cap >> cap_frame;
		if (cap_frame.empty()) { 
			
			break; 
		}

		cv::resize(cap_frame, cap_frame, this->cap_size);
		cv::cvtColor(cap_frame, cap_frame, CV_BGR2RGB);
		this->cap_frames.push_back(cap_frame);

		unique_ptr<ofImage> image(new ofImage());
		image->allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
		this->images.push_back(move(image));
	}

	this->blend_image.allocate(this->cap_size.width, this->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() {

	int blend_count = 5;
	int frame_span = 1;
	cv::Mat diff, gray_diff, color_diff;

	this->blend_frame = this->cap_frames[(ofGetFrameNum() + blend_count * frame_span) % this->cap_frames.size()] * 1.0;
	for (int i = 0; i < blend_count; i++) {
	
		cv::absdiff(this->cap_frames[(ofGetFrameNum() + i * frame_span) % this->cap_frames.size()], this->cap_frames[(ofGetFrameNum() + (i + 1) * frame_span) % this->cap_frames.size()], diff);
		cv::cvtColor(diff, gray_diff, CV_RGB2GRAY);
		cv::threshold(gray_diff, gray_diff, 64, 255, CV_THRESH_BINARY);

		cv::applyColorMap(diff, color_diff, cv::COLORMAP_HSV);

		/*
		cv::imshow("diff", diff);
		cv::imshow("gray_diff", gray_diff);
		cv::imshow("color_diff", color_diff);
		cv::waitKey(1);
		*/

		cv::add(this->blend_frame, diff, this->blend_frame, gray_diff);
	}
}

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

	ofSetColor(255);
	this->blend_image.update();
	this->blend_image.draw(0, 0);
}

//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

this->cap.open("D:\\video\\image26.mp4");

this->cap_size = cv::Size(1280, 720);

cv::Mat cap_frame;

while (true) {

this->cap >> cap_frame;

if (cap_frame.empty()) {

break;

}

cv::resize(cap_frame, cap_frame, this->cap_size);

cv::cvtColor(cap_frame, cap_frame, CV_BGR2RGB);

this->cap_frames.push_back(cap_frame);

unique_ptr<ofImage> image(new ofImage());

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

this->images.push_back(move(image));

}

this->blend_image.allocate(this->cap_size.width, this->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() {

int blend_count = 5;

int frame_span = 1;

cv::Mat diff, gray_diff, color_diff;

this->blend_frame = this->cap_frames[(ofGetFrameNum() + blend_count * frame_span) % this->cap_frames.size()] * 1.0;

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

cv::absdiff(this->cap_frames[(ofGetFrameNum() + i * frame_span) % this->cap_frames.size()], this->cap_frames[(ofGetFrameNum() + (i + 1) * frame_span) % this->cap_frames.size()], diff);

cv::cvtColor(diff, gray_diff, CV_RGB2GRAY);

cv::threshold(gray_diff, gray_diff, 64, 255, CV_THRESH_BINARY);

cv::applyColorMap(diff, color_diff, cv::COLORMAP_HSV);

cv::imshow("diff", diff);

cv::imshow("gray_diff", gray_diff);

cv::imshow("color_diff", color_diff);

cv::waitKey(1);

cv::add(this->blend_frame, diff, this->blend_frame, gray_diff);

}

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

void ofApp::draw() {

ofSetColor(255);

this->blend_image.update();

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

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180816

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2018年8月15日2018年8月15日

Color & Sound. openFrameworks

[ Video ]

[ About ]
パーリンノイズにX座標とフレーム番号を引数に与えて四角の色を変化。色の変化をきっかけに音が鳴るようにしました。

Change the color of the square by Perlin noise. I made the sound to sound as the trigger of color change.

[ 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) {};

	vector<ofSoundPlayer> sounds;
	vector<ofColor> sound_color;
};

#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) {};

vector<ofSoundPlayer> sounds;

vector<ofColor> sound_color;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);

	string sound_path_list[] = { "sound/pianoC2.mp3", "sound/pianoB.mp3", "sound/pianoA.mp3", "sound/pianoG.mp3", "sound/pianoF.mp3", "sound/pianoE.mp3", "sound/pianoD.mp3","sound/pianoC.mp3" };
	for (int i = 0; i < 8; i++) {

		ofSoundPlayer sound;
		sound.load(sound_path_list[i]);
		sound.setVolume(0.2);
		sound.setMultiPlay(true);
		this->sounds.push_back(sound);

		ofColor color;
		color.setHsb(i * 35, 255, 230);
		this->sound_color.push_back(color);
	}
}

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

	ofSoundUpdate();
}

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

	int span = 144;
	for (int x = 0; x < ofGetWidth(); x += span) {

		int noise_value = ofMap(ofNoise(x * 0.0005 + ofGetFrameNum() * 0.008), 0, 1, 0, this->sounds.size());
		int next_noise_value = ofMap(ofNoise(x * 0.0005 + (ofGetFrameNum() + 1) * 0.008), 0, 1, 0, this->sounds.size());

		ofFill();
		ofSetColor(this->sound_color[next_noise_value]);
		ofDrawRectangle(x, 0, x + span, ofGetHeight());

		ofNoFill();
		ofSetColor(239);
		ofDrawRectangle(x, 0, x + span, ofGetHeight());

		if (noise_value != next_noise_value) {

			this->sounds[next_noise_value].play();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

string sound_path_list[] = { "sound/pianoC2.mp3", "sound/pianoB.mp3", "sound/pianoA.mp3", "sound/pianoG.mp3", "sound/pianoF.mp3", "sound/pianoE.mp3", "sound/pianoD.mp3","sound/pianoC.mp3" };

for (int i = 0; i < 8; i++) {

ofSoundPlayer sound;

sound.load(sound_path_list[i]);

sound.setVolume(0.2);

sound.setMultiPlay(true);

this->sounds.push_back(sound);

ofColor color;

color.setHsb(i * 35, 255, 230);

this->sound_color.push_back(color);

}

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

void ofApp::update() {

ofSoundUpdate();

}

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

void ofApp::draw() {

int span = 144;

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

int noise_value = ofMap(ofNoise(x * 0.0005 + ofGetFrameNum() * 0.008), 0, 1, 0, this->sounds.size());

int next_noise_value = ofMap(ofNoise(x * 0.0005 + (ofGetFrameNum() + 1) * 0.008), 0, 1, 0, this->sounds.size());

ofFill();

ofSetColor(this->sound_color[next_noise_value]);

ofDrawRectangle(x, 0, x + span, ofGetHeight());

ofNoFill();

ofSetColor(239);

ofDrawRectangle(x, 0, x + span, ofGetHeight());

if (noise_value != next_noise_value) {

this->sounds[next_noise_value].play();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180815

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2018年8月14日2018年8月14日

Noise Font. openframeworks

[ Video ]

[ About ]
パーリンノイズで文字をユラユラ

Font is slide by Perlin noise.

[ Souce ]

#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) {};

	ofTrueTypeFont font;
	int font_size;
};

#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) {};

ofTrueTypeFont font;

int font_size;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);

	this->font_size = 100;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}

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

}

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

	vector<char> charactors = { 'N', 'O', 'I', 'S', 'E' };
	int sample_count = 180;
	for (int charactor_index = 0; charactor_index < charactors.size(); charactor_index++) {

		ofPath path = this->font.getCharacterAsPoints(charactors[charactor_index], true, false);
		vector<ofPolyline> outline = path.getOutline();

		ofPoint location = ofPoint(charactor_index * 144 + 72, ofGetHeight() * 0.5);
		ofPushMatrix();
		ofTranslate(location);

		ofNoFill();
		this->font.drawStringAsShapes(string{ charactors[charactor_index] }, this->font_size * -0.5, this->font_size * 0.5);

		ofFill();
		ofBeginShape();
		for (int outline_index = 0; outline_index < (int)outline.size(); outline_index++) {

			if (outline_index != 0) {

				ofNextContour(true);
			}

			outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);
			vector<glm::vec3> vertices = outline[outline_index].getVertices();
			for (int vertices_index = 0; vertices_index < (int)vertices.size(); vertices_index++) {

				ofPoint point(vertices[vertices_index].x - this->font_size * 0.5, vertices[vertices_index].y + this->font_size * 0.5, vertices[vertices_index].z);
				int noise_value = ofMap(ofNoise((location.x + point.x) * -0.01 - ofGetFrameNum() * 0.03), 0, 1, -100, 100);
				noise_value /= 10;
				noise_value *= 10;
				if (noise_value > -20 && noise_value < 20) {

					noise_value = 0;
				}

				ofVertex(point + ofPoint(noise_value, noise_value));
			}
		}
		ofEndShape();
		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

this->font_size = 100;

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

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

vector<char> charactors = { 'N', 'O', 'I', 'S', 'E' };

int sample_count = 180;

for (int charactor_index = 0; charactor_index < charactors.size(); charactor_index++) {

ofPath path = this->font.getCharacterAsPoints(charactors[charactor_index], true, false);

vector<ofPolyline> outline = path.getOutline();

ofPoint location = ofPoint(charactor_index * 144 + 72, ofGetHeight() * 0.5);

ofPushMatrix();

ofTranslate(location);

ofNoFill();

this->font.drawStringAsShapes(string{ charactors[charactor_index] }, this->font_size * -0.5, this->font_size * 0.5);

ofFill();

ofBeginShape();

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

if (outline_index != 0) {

ofNextContour(true);

}

outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);

vector<glm::vec3> vertices = outline[outline_index].getVertices();

for (int vertices_index = 0; vertices_index < (int)vertices.size(); vertices_index++) {

ofPoint point(vertices[vertices_index].x - this->font_size * 0.5, vertices[vertices_index].y + this->font_size * 0.5, vertices[vertices_index].z);

int noise_value = ofMap(ofNoise((location.x + point.x) * -0.01 - ofGetFrameNum() * 0.03), 0, 1, -100, 100);

noise_value /= 10;

noise_value *= 10;

if (noise_value > -20 && noise_value < 20) {

noise_value = 0;

}

ofVertex(point + ofPoint(noise_value, noise_value));

}

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180814

[ほしいものリスト]
Amazon

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