image – ページ 5 – プログラミング de 落描き

2018年10月3日2018年10月3日

Lenna. openFrameworks

[ Video ]

[ About ]
画像データのピクセル操作に関する質問を頂いたので、返信用に作成した動作検証用のSourceとLennaさん

Lenna.

[ 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) {};

	ofImage image;
	ofPixels pixels;
};

#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) {};

ofImage image;

ofPixels pixels;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	
	this->image.load("images/lenna.jpg");
	this->pixels = this->image.getPixels();
}

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

}

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

	int step = ofMap(ofGetMouseX(), 0, ofGetWidth(), 5, 30);
	for (int x = 0; x < this->pixels.getWidth(); x += step) {

		for (int y = 0; y < this->pixels.getHeight(); y += step) {
			 
			ofColor color = this->pixels.getColor(x, y);
			ofSetColor(color);
			ofDrawRectangle(x, y, step, step);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(39);

this->image.load("images/lenna.jpg");

this->pixels = this->image.getPixels();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int step = ofMap(ofGetMouseX(), 0, ofGetWidth(), 5, 30);

for (int x = 0; x < this->pixels.getWidth(); x += step) {

for (int y = 0; y < this->pixels.getHeight(); y += step) {

ofColor color = this->pixels.getColor(x, y);

ofSetColor(color);

ofDrawRectangle(x, y, step, step);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181003

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年8月20日2018年8月20日

Multiple windows. openFrameworks

[ Video ]

[ About ]
複数のWindowで1枚の画像を表示してみました。

I tried display one image in multiple windows.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofAppGLFWWindow.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) {};

	ofImage image;

	int screen_width, screen_height;
	int window_width, window_height;
	float noise_seed_x, noise_seed_y;
	ofPoint window_position;
};

#pragma once

#include "ofMain.h"

#include "ofAppGLFWWindow.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) {};

ofImage image;

int screen_width, screen_height;

int window_width, window_height;

float noise_seed_x, noise_seed_y;

ofPoint window_position;

};

#include "ofApp.h"

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

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

	ofSetColor(0);
	ofSetColor(255);

	this->image.loadImage("images/image.jpg");

	this->screen_width = ofGetScreenWidth();
	this->screen_height = ofGetScreenHeight();
	this->window_width = ofGetWindowWidth();
	this->window_height = ofGetWindowHeight();
	this->noise_seed_x = ofRandom(100);
	this->noise_seed_y = ofRandom(100);
}

//--------------------------------------------------------------
void ofApp::update() {
	
	int x = ofMap(ofNoise(this->noise_seed_x + ofGetFrameNum() * 0.03), 0, 1, this->screen_width * -0.2, this->screen_width * 1.2) - this->window_width * 0.5;
	int y = ofMap(ofNoise(this->noise_seed_y + ofGetFrameNum() * 0.03), 0, 1, this->screen_height * -0.2, this->screen_height * 1.2) - this->window_height * 0.5;
	this->window_position = ofPoint(x, y);
	ofSetWindowPosition(this->window_position.x, this->window_position.y);
}

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

	ofTranslate(this->window_position * -1);
	this->image.draw(0, 0);
}

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

	ofGLFWWindowSettings settings;
	settings.setSize(200, 200);
	settings.resizable = false;

	for (int i = 0; i < 32; i++) {

		shared_ptr<ofAppBaseWindow> window = ofCreateWindow(settings);
		shared_ptr<ofApp> window_app(new ofApp);
		ofRunApp(window, window_app);
	}
	
	ofRunMainLoop();
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofSetColor(0);

ofSetColor(255);

this->image.loadImage("images/image.jpg");

this->screen_width = ofGetScreenWidth();

this->screen_height = ofGetScreenHeight();

this->window_width = ofGetWindowWidth();

this->window_height = ofGetWindowHeight();

this->noise_seed_x = ofRandom(100);

this->noise_seed_y = ofRandom(100);

}

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

void ofApp::update() {

int x = ofMap(ofNoise(this->noise_seed_x + ofGetFrameNum() * 0.03), 0, 1, this->screen_width * -0.2, this->screen_width * 1.2) - this->window_width * 0.5;

int y = ofMap(ofNoise(this->noise_seed_y + ofGetFrameNum() * 0.03), 0, 1, this->screen_height * -0.2, this->screen_height * 1.2) - this->window_height * 0.5;

this->window_position = ofPoint(x, y);

ofSetWindowPosition(this->window_position.x, this->window_position.y);

}

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

void ofApp::draw() {

ofTranslate(this->window_position * -1);

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

}

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

int main() {

ofGLFWWindowSettings settings;

settings.setSize(200, 200);

settings.resizable = false;

for (int i = 0; i < 32; i++) {

shared_ptr<ofAppBaseWindow> window = ofCreateWindow(settings);

shared_ptr<ofApp> window_app(new ofApp);

ofRunApp(window, window_app);

}

ofRunMainLoop();

}

[ Link ]
https://github.com/junkiyoshi/Insta20180820

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年6月21日2018年6月21日

動画を円化け openFrameworks

[ Video ]

[ About ]
OpenCVで取得した動画の色情報を、円に転写。それぞれの円をNoise関数でユラユラさせました

[ Source ]

#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::Mat cap_frame;
	ofImage cap_image;
	cv::Size cap_size;
};

#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::Mat cap_frame;

ofImage cap_image;

cv::Size cap_size;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(3);

	this->cap.open("D:\\video\\image2.mp4");
	this->cap_size = cv::Size(1280, 720);
	this->cap_image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->cap_frame = cv::Mat(this->cap_image.getHeight(), this->cap_image.getWidth(), CV_MAKETYPE(CV_8UC3, this->cap_image.getPixels().getNumChannels()), this->cap_image.getPixels().getData(), 0);
}

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

	cv::Mat origin;
	this->cap >> origin;
	if (origin.empty()) {

		this->cap.set(CV_CAP_PROP_POS_FRAMES, 1);
		return;
	}

	cv::resize(origin, this->cap_frame, this->cap_size);
	cv::cvtColor(this->cap_frame, this->cap_frame, CV_BGR2RGB);
	
	this->cap_image.update();
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	for (int radius = 0; radius < 720; radius += 10) {

		float noise_value = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -60, 60);
		ofPushMatrix();
		ofRotate(noise_value);

		for (int deg = 0; deg < 360; deg++) {

			int x = radius * cos(deg * DEG_TO_RAD);
			int y = radius * sin(deg * DEG_TO_RAD);

			int x_index = x + this->cap_size.width * 0.5;
			int y_index = y + this->cap_size.height * 0.5;

			if (x_index < 0 || x_index >= this->cap_size.width || y_index < 0 || y_index >= this->cap_size.height) {

				continue;
			}

			ofColor color(this->cap_frame.at<cv::Vec3b>(y_index, x_index)[0], this->cap_frame.at<cv::Vec3b>(y_index, x_index)[1], this->cap_frame.at<cv::Vec3b>(y_index, x_index)[2]);
			ofSetColor(color);

			int next_x = radius * cos((deg + 1) * DEG_TO_RAD);
			int next_y = radius * sin((deg + 1) * DEG_TO_RAD);

			ofDrawLine(x, y, next_x, next_y);
		}

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofSetLineWidth(3);

this->cap.open("D:\\video\\image2.mp4");

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

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

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

}

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

void ofApp::update() {

cv::Mat origin;

this->cap >> origin;

if (origin.empty()) {

this->cap.set(CV_CAP_PROP_POS_FRAMES, 1);

return;

}

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

cv::cvtColor(this->cap_frame, this->cap_frame, CV_BGR2RGB);

this->cap_image.update();

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

for (int radius = 0; radius < 720; radius += 10) {

float noise_value = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -60, 60);

ofPushMatrix();

ofRotate(noise_value);

for (int deg = 0; deg < 360; deg++) {

int x = radius * cos(deg * DEG_TO_RAD);

int y = radius * sin(deg * DEG_TO_RAD);

int x_index = x + this->cap_size.width * 0.5;

int y_index = y + this->cap_size.height * 0.5;

if (x_index < 0 || x_index >= this->cap_size.width || y_index < 0 || y_index >= this->cap_size.height) {

continue;

}

ofColor color(this->cap_frame.at<cv::Vec3b>(y_index, x_index)[0], this->cap_frame.at<cv::Vec3b>(y_index, x_index)[1], this->cap_frame.at<cv::Vec3b>(y_index, x_index)[2]);

ofSetColor(color);

int next_x = radius * cos((deg + 1) * DEG_TO_RAD);

int next_y = radius * sin((deg + 1) * DEG_TO_RAD);

ofDrawLine(x, y, next_x, next_y);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180621

[ほしいものリスト]
Amazon

[ Sponsor Link ]

月	火	水	木	金	土	日
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30