opencv – ページ 26 – プログラミング de 落描き

2019年12月29日

Round the face. openFrameworks

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[ About ]
OpenCVで顔を検出して、Shaderで画像処理。

Round the face.

[ 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::Size cap_size;
	cv::VideoCapture cap;
	cv::Mat frame;
	ofImage image;

	cv::CascadeClassifier face_cascade;

	int number_of_targets;
	vector<glm::vec4> targets;
	vector<glm::vec4> sizes;

	ofShader shader;
};

#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::Size cap_size;

cv::VideoCapture cap;

cv::Mat frame;

ofImage image;

cv::CascadeClassifier face_cascade;

int number_of_targets;

vector<glm::vec4> targets;

vector<glm::vec4> sizes;

ofShader shader;

};

#include "ofApp.h"

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

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

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

	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->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	this->number_of_targets = 2;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->targets.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));
		this->sizes.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));
	}

	this->face_cascade.load("D:\\opencv_4.1.2\\build\\install\\etc\\haarcascades\\haarcascade_frontalface_alt2.xml");
	this->shader.load("shader/shader.vert", "shader/shader.frag");
}
//--------------------------------------------------------------
void ofApp::update() {

	for (int i = 0; i < this->number_of_targets; i++) {

		this->targets[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);
		this->sizes[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);
	}

	this->cap >> this->frame;
	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);
	this->image.update();

	cv::Mat gray_frame, small_frame;
	cv::cvtColor(this->frame, gray_frame, cv::COLOR_RGB2GRAY);
	cv::resize(gray_frame, small_frame, cv::Size(this->cap_size.width * 0.5, this->cap_size.height * 0.5));

	vector<cv::Rect> faces;
	this->face_cascade.detectMultiScale(small_frame, faces);

	int face_count = 0;
	for (cv::Rect r : faces) {

		this->targets[face_count] = glm::vec4(r.x * 2.f + r.width, r.y * 2.f + r.height, 0.f, 0.f);
		float value = r.width < r.height ? r.width : r.height;
		this->sizes[face_count] = glm::vec4(value, value, 0.f, 0.f);
		face_count++;

		if (face_count >= this->number_of_targets) {

			break;
		}
	}
}

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

	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniformTexture("tex", this->image, 1);
	this->shader.setUniform4fv("targets", &this->targets[0].x, this->number_of_targets);
	this->shader.setUniform4fv("sizes", &this->sizes[0].x, this->number_of_targets);

	ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

	this->shader.end();
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(640, 360);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

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

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

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

this->number_of_targets = 2;

for (int i = 0; i < this->number_of_targets; i++) {

this->targets.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));

this->sizes.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));

}

this->face_cascade.load("D:\\opencv_4.1.2\\build\\install\\etc\\haarcascades\\haarcascade_frontalface_alt2.xml");

this->shader.load("shader/shader.vert", "shader/shader.frag");

}

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

void ofApp::update() {

for (int i = 0; i < this->number_of_targets; i++) {

this->targets[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);

this->sizes[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);

}

this->cap >> this->frame;

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

this->image.update();

cv::Mat gray_frame, small_frame;

cv::cvtColor(this->frame, gray_frame, cv::COLOR_RGB2GRAY);

cv::resize(gray_frame, small_frame, cv::Size(this->cap_size.width * 0.5, this->cap_size.height * 0.5));

vector<cv::Rect> faces;

this->face_cascade.detectMultiScale(small_frame, faces);

int face_count = 0;

for (cv::Rect r : faces) {

this->targets[face_count] = glm::vec4(r.x * 2.f + r.width, r.y * 2.f + r.height, 0.f, 0.f);

float value = r.width < r.height ? r.width : r.height;

this->sizes[face_count] = glm::vec4(value, value, 0.f, 0.f);

face_count++;

if (face_count >= this->number_of_targets) {

break;

}

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

void ofApp::draw() {

this->shader.begin();

this->shader.setUniform1f("time", ofGetElapsedTimef());

this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());

this->shader.setUniformTexture("tex", this->image, 1);

this->shader.setUniform4fv("targets", &this->targets[0].x, this->number_of_targets);

this->shader.setUniform4fv("sizes", &this->sizes[0].x, this->number_of_targets);

ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(640, 360);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;
in vec2 texcoord;
out vec2 texCoordVarying;

void main(){

	texCoordVarying = texcoord;
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

in vec2 texcoord;

out vec2 texCoordVarying;

void main(){

texCoordVarying = texcoord;

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 2;

uniform float time;
uniform vec2 resolution;
uniform sampler2DRect tex;
uniform vec4 targets[number_of_targets];
uniform vec4 sizes[number_of_targets];

in vec2 texCoordVarying;
out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

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

    vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;
    t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

    vec2 sz = vec2(sizes[i].x, -sizes[i].y) / min(resolution.x, resolution.y) * 2.0;

    vec2 q = p - t;
    float d = length(q);
    if(d < length(sz)){

      float a = atan(q.y, q.x);
      float x = t.x + cos(a + time * 3 + d * 15) * d;
      float y = t.y + sin(a + time * 3 + d * 15) * d;
      p = vec2(x, y);
    }
  }

  vec4 color = texture(tex, vec2((p.x * min(resolution.x, resolution.y) + resolution.x) * 0.5, resolution.y - (p.y * min(resolution.x, resolution.y) + resolution.y) * 0.5));
  
  float mono = dot(color.rgb, vec3(1.0/3.0));
  outputColor = vec4(vec3(mono), color.a);

}

#version 150

const int number_of_targets = 2;

uniform float time;

uniform vec2 resolution;

uniform sampler2DRect tex;

uniform vec4 targets[number_of_targets];

uniform vec4 sizes[number_of_targets];

in vec2 texCoordVarying;

out vec4 outputColor;

void main() {

vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

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

vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;

t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

vec2 sz = vec2(sizes[i].x, -sizes[i].y) / min(resolution.x, resolution.y) * 2.0;

vec2 q = p - t;

float d = length(q);

if(d < length(sz)){

float a = atan(q.y, q.x);

float x = t.x + cos(a + time * 3 + d * 15) * d;

float y = t.y + sin(a + time * 3 + d * 15) * d;

p = vec2(x, y);

}

vec4 color = texture(tex, vec2((p.x * min(resolution.x, resolution.y) + resolution.x) * 0.5, resolution.y - (p.y * min(resolution.x, resolution.y) + resolution.y) * 0.5));

float mono = dot(color.rgb, vec3(1.0/3.0));

outputColor = vec4(vec3(mono), color.a);

}

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2019年11月17日

Rotating web camera image. openFrameworks

[ Video ]

[ About ]
WebCameraの映像をリアルタイムでぐねんぐねん。

Rotating web camera image.

[ 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;

	ofEasyCam cam;
	ofMesh mesh;
};

#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;

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();

	this->cap.open(0);
	this->cap.set(cv::CAP_PROP_FPS, 30);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 360);
}

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

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

	this->mesh.clear();

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

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

			glm::vec3 vertex = glm::vec3(x, y, 0) - glm::vec3(320, 180, 0);
			auto angle = ofMap(ofNoise(vertex.y * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -PI, PI);
			auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
			vertex = glm::vec4(vertex, 0) * rotation;

			cv::Vec3b tmp = this->frame.at<cv::Vec3b>(y, x);
			auto color = ofColor(tmp[0], tmp[1], tmp[2]);

			this->mesh.addVertex(vertex);
			this->mesh.addColor(color);
		}
	}

	int cols = this->frame.rows / span;
	int rows = this->frame.cols / span;

	for (int col = 1; col < cols; col++) {

		for (int row = 1; row < rows; row++) {

			this->mesh.addIndex(col + row * cols);
			this->mesh.addIndex((col - 1) + (row - 1) * cols);
			this->mesh.addIndex((col - 1) + row * cols);

			this->mesh.addIndex(col + row * cols);
			this->mesh.addIndex((col - 1) + (row - 1) * cols);
			this->mesh.addIndex(col + (row - 1) * cols);
		}
	}
}

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

	this->cam.begin();

	this->mesh.draw();

	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(39);

ofEnableDepthTest();

this->cap.open(0);

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

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

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 360);

}

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

void ofApp::update() {

this->cap >> this->frame;

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

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

this->mesh.clear();

int span = 1;

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

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

glm::vec3 vertex = glm::vec3(x, y, 0) - glm::vec3(320, 180, 0);

auto angle = ofMap(ofNoise(vertex.y * 0.005 + ofGetFrameNum() * 0.05), 0, 1, -PI, PI);

auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));

vertex = glm::vec4(vertex, 0) * rotation;

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

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

this->mesh.addVertex(vertex);

this->mesh.addColor(color);

}

int cols = this->frame.rows / span;

int rows = this->frame.cols / span;

for (int col = 1; col < cols; col++) {

for (int row = 1; row < rows; row++) {

this->mesh.addIndex(col + row * cols);

this->mesh.addIndex((col - 1) + (row - 1) * cols);

this->mesh.addIndex((col - 1) + row * cols);

this->mesh.addIndex(col + row * cols);

this->mesh.addIndex((col - 1) + (row - 1) * cols);

this->mesh.addIndex(col + (row - 1) * cols);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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2019年6月13日2019年6月13日

Line and shadow. openFrameworks

[ Video ]

[ About ]
線と影

Line and shadow.

[ 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) {};

	glm::vec2 make_point(int len, int param);

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#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) {};

glm::vec2 make_point(int len, int param);

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	
	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	ofSeedRandom(39);

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

	for (int x = 200; x < ofGetWidth(); x += 360) {

		ofPushMatrix();
		ofTranslate(x, ofGetHeight() * 0.5 - 5);

		int len = 300;
		for (int i = 0; i < 8; i++) {

			vector<glm::vec2> vertices;
			int width = ofRandom(1, 3);

			float noise_seed_1 = ofRandom(1000);
			float noise_seed_2 = ofRandom(1000);

			int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003), 0, 1, 0, 100);
			for (int param = param_start; param <= param_start + width; param++) {

				vertices.push_back(this->make_point(len, param));
			}

			int tmp_param_start = param_start + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.003), 0, 1, 25, 50);
			for (int param = tmp_param_start; param <= tmp_param_start + width; param++) {

				vertices.push_back(this->make_point(len, param));
			}

			ofFill();
			ofSetColor(39);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}

		ofPopMatrix();
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);
}

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

	ofSetColor(255, 192);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(-5, -5);

	ofSetColor(255);
	this->fbo.draw(-25, -25);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

ofSeedRandom(39);

this->fbo.begin();

ofClear(0);

for (int x = 200; x < ofGetWidth(); x += 360) {

ofPushMatrix();

ofTranslate(x, ofGetHeight() * 0.5 - 5);

int len = 300;

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

vector<glm::vec2> vertices;

int width = ofRandom(1, 3);

float noise_seed_1 = ofRandom(1000);

float noise_seed_2 = ofRandom(1000);

int param_start = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.003), 0, 1, 0, 100);

for (int param = param_start; param <= param_start + width; param++) {

vertices.push_back(this->make_point(len, param));

}

int tmp_param_start = param_start + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.003), 0, 1, 25, 50);

for (int param = tmp_param_start; param <= tmp_param_start + width; param++) {

vertices.push_back(this->make_point(len, param));

}

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

ofPopMatrix();

}

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);

}

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

void ofApp::draw() {

ofSetColor(255, 192);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(-5, -5);

ofSetColor(255);

this->fbo.draw(-25, -25);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190613

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