プログラミング de 落描き – ページ 527 – クリエイティブ・コーディングによる生成物とソース

2021年6月25日2021年6月25日

Draw only gap area. Draw by openFrameworks

[ Video ]

[ About ]
OpenCVでフレーム間の差分を計算して、閾値を超えた箇所だけ描写する。
ofImage.getTexture().bind(), ofImage.getTexture().unbind()でofDrawBox()へ反映。
setup()関数内でofDisableArbTex()をするのを忘れないようにする。

Calculate the difference between frames in OpenCV and draw only the parts that exceed the threshold.
Reflect it to ofDrawBox() by ofImage.getTexture().bind(), ofImage.getTexture().unbind().
Don’t forget to do ofDisableArbTex() in the setup() function.

[ 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) {};

	ofEasyCam cam;

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	float rect_size;
	vector<float> draw_rect_size_list;
	vector<cv::Mat> rect_frame_list;
	vector<unique_ptr<ofImage>> rect_image_list;
	vector<cv::Rect> cv_rect_list;
};

#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) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

float rect_size;

vector<float> draw_rect_size_list;

vector<cv::Mat> rect_frame_list;

vector<unique_ptr<ofImage>> rect_image_list;

vector<cv::Rect> cv_rect_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_size = cv::Size(640, 360);
	this->rect_size = 10;
	for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

		for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

			auto image = make_unique<ofImage>();
			image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);
			cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);
			cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

			this->rect_image_list.push_back(move(image));
			this->cv_rect_list.push_back(rect);
			this->rect_frame_list.push_back(frame);
			this->draw_rect_size_list.push_back(this->rect_size);
		}
	}

	auto file_path = "D:\\MP4\\Pexels Videos 2880.mp4";
	this->cap.open(file_path);
	this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}
}

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

	int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;
	int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

		this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.3;
	}

	if (frame_index < next_frame_index) {

		cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

			int x = this->cv_rect_list[i].x + this->rect_size * 0.5;
			int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

			cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);
			cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);
			cv::Vec3b gv = gap_value[x];
			cv::Vec3b cv = color_value[x];
			if ((gv[0] + gv[1] + gv[2]) > 50) {

				this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

	ofFill();

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

		ofPushMatrix();
		ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -1);
		ofRotateX(180);

		int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

		cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);
		tmp_box_image.copyTo(this->rect_frame_list[i]);

		if (this->draw_rect_size_list[i] > 0) {

			this->rect_image_list[i]->update();
			this->rect_image_list[i]->getTexture().bind();

			auto height = this->draw_rect_size_list[i] * 5;

			ofSetColor(ofMap(this->draw_rect_size_list[i], 0, this->rect_size, 0, 255));
			ofDrawBox(glm::vec3(), this->rect_size);
			this->rect_image_list[i]->unbind();
		}

		ofPopMatrix();
	}

	ofNoFill();
	ofSetColor(39);
	ofDrawBox(glm::vec3(this->rect_size * 0.5, this->rect_size * -0.5, 0), 640, 360, this->rect_size);

	this->cam.end();
}

//--------------------------------------------------------------
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);

ofEnableDepthTest();

ofDisableArbTex();

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

this->rect_size = 10;

for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

auto image = make_unique<ofImage>();

image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);

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

cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

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

this->cv_rect_list.push_back(rect);

this->rect_frame_list.push_back(frame);

this->draw_rect_size_list.push_back(this->rect_size);

}

auto file_path = "D:\\MP4\\Pexels Videos 2880.mp4";

this->cap.open(file_path);

this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);

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

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

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

this->frame_list.push_back(tmp);

}

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

void ofApp::update() {

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.3;

}

if (frame_index < next_frame_index) {

cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

int x = this->cv_rect_list[i].x + this->rect_size * 0.5;

int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

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

cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);

cv::Vec3b gv = gap_value[x];

cv::Vec3b cv = color_value[x];

if ((gv[0] + gv[1] + gv[2]) > 50) {

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofFill();

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

ofPushMatrix();

ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -1);

ofRotateX(180);

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);

tmp_box_image.copyTo(this->rect_frame_list[i]);

if (this->draw_rect_size_list[i] > 0) {

this->rect_image_list[i]->update();

this->rect_image_list[i]->getTexture().bind();

auto height = this->draw_rect_size_list[i] * 5;

ofSetColor(ofMap(this->draw_rect_size_list[i], 0, this->rect_size, 0, 255));

ofDrawBox(glm::vec3(), this->rect_size);

this->rect_image_list[i]->unbind();

}

ofPopMatrix();

}

ofNoFill();

ofSetColor(39);

ofDrawBox(glm::vec3(this->rect_size * 0.5, this->rect_size * -0.5, 0), 640, 360, this->rect_size);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210625

2021年6月24日2021年6月24日

Randam work of Kanji number. Draw by openFrameworks

[ Video ]

[ About ]
漢数字のランダムウォーク。
お互いの位置を確認して重ならない様に移動をする。
漢字は自身に近い数を表す。

Random walk of Kanji numbers.
Check each other’s position and move so that they do not overlap.
The Kanji character represents the number closest to itself.

[ Source ]

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	glm::vec3 get_location();
	glm::vec3 get_prev_location();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	glm::vec3 prev_location;
};

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;
	vector<string> word_list;

	vector<glm::vec3> location_list;
	vector<vector<int>> next_index_list;
	vector<int> destination_list;
	int span;

	vector<unique_ptr<Actor>> actor_list;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

glm::vec3 get_location();

glm::vec3 get_prev_location();

private:

int select_index;

int next_index;

glm::vec3 location;

glm::vec3 prev_location;

};

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;

vector<string> word_list;

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<int> destination_list;

int span;

vector<unique_ptr<Actor>> actor_list;

};

#include "ofApp.h"	

//--------------------------------------------------------------
Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

	this->select_index = ofRandom(location_list.size());
	while (true) {

		auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);
		if (itr == destination_list.end()) {

			destination_list.push_back(this->select_index);
			break;
		}

		this->select_index = (this->select_index + 1) % location_list.size();
	}

	this->next_index = this->select_index;
}

//--------------------------------------------------------------
void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

		auto tmp_index = this->select_index;
		this->select_index = this->next_index;
		int retry = next_index_list[this->select_index].size() + 1;
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
		while (--retry > 0) {

			auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);
			if (destination_itr == destination_list.end()) {

				if (tmp_index != this->next_index) {

					destination_list.push_back(this->next_index);
					break;
				}
			}

			this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];
		}
		if (retry <= 0) {

			destination_list.push_back(this->select_index);
			this->next_index = this->select_index;
		}
	}

	auto param = ofGetFrameNum() % frame_span;
	auto distance = location_list[this->next_index] - location_list[this->select_index];
	if (this->next_index != this->select_index) {

		this->prev_location = location;
	}
	this->location = location_list[this->select_index] + distance / frame_span * param;
}

//--------------------------------------------------------------
glm::vec3 Actor::get_location() {

	return this->location;
}

//--------------------------------------------------------------
glm::vec3 Actor::get_prev_location() {

	return this->prev_location;
}

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofNoFill();

	this->span = 50;
	for (int x = -200; x <= 200; x += span) {

		for (int y = -200; y <= 200; y += span) {

			this->location_list.push_back(glm::vec3(x, y, 0));
		}
	}

	for (auto& location : this->location_list) {

		vector<int> next_index = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span + 1) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	for (int i = 0; i < 60; i++) {

		this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));
	}

	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", 25);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Japanese);
	this->font.load(font_settings);

	this->word_list = {

		u8"零", u8"壱", u8"弐", u8"参", u8"四",
		u8"伍", u8"六", u8"七", u8"八", u8"九",
	};
}

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

	int frame_span = 15;
	int prev_index_size = 0;

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

		prev_index_size = this->destination_list.size();
	}

	for (auto& actor : this->actor_list) {

		actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);
	}

	if (prev_index_size != 0) {

		this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	vector<string> word_list;

	for (auto& actor : this->actor_list) {

		int count = 0;
		for (auto& other : this->actor_list) {

			if (actor == other) { continue; }

			if (glm::distance(actor->get_location(), other->get_location()) <= this->span * sqrt(2)) {

				count++;
			}
		}

		this->font.drawString(this->word_list[count], actor->get_location().x - this->font.stringWidth(this->word_list[count]) * 0.5, actor->get_location().y + this->font.stringHeight(this->word_list[count]) * 0.5);
	}

	for (int x = -200; x <= 200; x += this->span) {

		for (int y = -200; y <= 200; y += this->span) {

			ofDrawRectangle(glm::vec3(x - this->span * 0.5, y - this->span * 0.5, 0), this->span, this->span);
		}
	}	
}

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

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

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#include "ofApp.h"

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

Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

this->select_index = ofRandom(location_list.size());

while (true) {

auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);

if (itr == destination_list.end()) {

destination_list.push_back(this->select_index);

break;

}

this->select_index = (this->select_index + 1) % location_list.size();

}

this->next_index = this->select_index;

}

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

void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

auto tmp_index = this->select_index;

this->select_index = this->next_index;

int retry = next_index_list[this->select_index].size() + 1;

this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];

while (--retry > 0) {

auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);

if (destination_itr == destination_list.end()) {

if (tmp_index != this->next_index) {

destination_list.push_back(this->next_index);

break;

}

this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];

}

if (retry <= 0) {

destination_list.push_back(this->select_index);

this->next_index = this->select_index;

}

auto param = ofGetFrameNum() % frame_span;

auto distance = location_list[this->next_index] - location_list[this->select_index];

if (this->next_index != this->select_index) {

this->prev_location = location;

}

this->location = location_list[this->select_index] + distance / frame_span * param;

}

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

glm::vec3 Actor::get_location() {

return this->location;

}

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

glm::vec3 Actor::get_prev_location() {

return this->prev_location;

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

ofNoFill();

this->span = 50;

for (int x = -200; x <= 200; x += span) {

for (int y = -200; y <= 200; y += span) {

this->location_list.push_back(glm::vec3(x, y, 0));

}

for (auto& location : this->location_list) {

vector<int> next_index = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span + 1) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

for (int i = 0; i < 60; i++) {

this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));

}

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", 25);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->word_list = {

u8"零", u8"壱", u8"弐", u8"参", u8"四",

u8"伍", u8"六", u8"七", u8"八", u8"九",

};

}

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

void ofApp::update() {

int frame_span = 15;

int prev_index_size = 0;

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

prev_index_size = this->destination_list.size();

}

for (auto& actor : this->actor_list) {

actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);

}

if (prev_index_size != 0) {

this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

vector<string> word_list;

for (auto& actor : this->actor_list) {

int count = 0;

for (auto& other : this->actor_list) {

if (actor == other) { continue; }

if (glm::distance(actor->get_location(), other->get_location()) <= this->span * sqrt(2)) {

count++;

}

this->font.drawString(this->word_list[count], actor->get_location().x - this->font.stringWidth(this->word_list[count]) * 0.5, actor->get_location().y + this->font.stringHeight(this->word_list[count]) * 0.5);

}

for (int x = -200; x <= 200; x += this->span) {

for (int y = -200; y <= 200; y += this->span) {

ofDrawRectangle(glm::vec3(x - this->span * 0.5, y - this->span * 0.5, 0), this->span, this->span);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210624

[ Kinako ]

2021年6月23日2021年6月23日

Image gap change to height. Draw by openFrameworks

[ Video ]

[ About ]
OpenCVで映像の差分を計算する。
差があった部分だけBoxの高さを長くする。

Calculate the differences in the video using OpenCV.
Increase the height of the box only where there is a 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 windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	float rect_size;
	vector<float> draw_rect_size_list;
	vector<cv::Mat> rect_frame_list;
	vector<unique_ptr<ofImage>> rect_image_list;
	vector<cv::Rect> cv_rect_list;
};

#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) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

float rect_size;

vector<float> draw_rect_size_list;

vector<cv::Mat> rect_frame_list;

vector<unique_ptr<ofImage>> rect_image_list;

vector<cv::Rect> cv_rect_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_size = cv::Size(640, 360);
	this->rect_size = 10;
	for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

		for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

			auto image = make_unique<ofImage>();
			image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);
			cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);
			cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

			this->rect_image_list.push_back(move(image));
			this->cv_rect_list.push_back(rect);
			this->rect_frame_list.push_back(frame);
			this->draw_rect_size_list.push_back(this->rect_size);
		}
	}

	auto file_path = "D:\\MP4\\Pexels Videos 2880.mp4";
	this->cap.open(file_path);
	this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}
}

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

	int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;
	int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

		this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.5;
	}

	if (frame_index < next_frame_index) {

		cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

			int x = this->cv_rect_list[i].x + this->rect_size * 0.5;
			int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

			cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);
			cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);
			cv::Vec3b gv = gap_value[x];
			cv::Vec3b cv = color_value[x];
			if ((gv[0] + gv[1] + gv[2]) > 100) {

				this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateX(-45);

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

		ofPushMatrix();
		ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -1);
		ofRotateX(180);

		int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

		cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);
		tmp_box_image.copyTo(this->rect_frame_list[i]);

		if (this->draw_rect_size_list[i] > 0) {

			this->rect_image_list[i]->update();
			this->rect_image_list[i]->getTexture().bind();

			auto height = this->draw_rect_size_list[i] * 5;

			ofSetColor(255);
			ofFill();
			ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);
			this->rect_image_list[i]->unbind();

			ofSetColor(39);
			ofNoFill();
			ofSetLineWidth(2);
			ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);
		}
		else {

			this->rect_image_list[i]->update();
			this->rect_image_list[i]->getTexture().bind();

			ofSetColor(128);
			ofFill();
			ofDrawBox(glm::vec3(), this->rect_size);
			this->rect_image_list[i]->unbind();

			ofSetColor(239);
			ofNoFill();
			ofSetLineWidth(1);
			ofDrawBox(glm::vec3(), this->rect_size);
		}

		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
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);

ofEnableDepthTest();

ofDisableArbTex();

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

this->rect_size = 10;

for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

auto image = make_unique<ofImage>();

image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);

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

cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

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

this->cv_rect_list.push_back(rect);

this->rect_frame_list.push_back(frame);

this->draw_rect_size_list.push_back(this->rect_size);

}

auto file_path = "D:\\MP4\\Pexels Videos 2880.mp4";

this->cap.open(file_path);

this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);

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

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

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

this->frame_list.push_back(tmp);

}

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

void ofApp::update() {

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.5;

}

if (frame_index < next_frame_index) {

cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

int x = this->cv_rect_list[i].x + this->rect_size * 0.5;

int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

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

cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);

cv::Vec3b gv = gap_value[x];

cv::Vec3b cv = color_value[x];

if ((gv[0] + gv[1] + gv[2]) > 100) {

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateX(-45);

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

ofPushMatrix();

ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -1);

ofRotateX(180);

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);

tmp_box_image.copyTo(this->rect_frame_list[i]);

if (this->draw_rect_size_list[i] > 0) {

this->rect_image_list[i]->update();

this->rect_image_list[i]->getTexture().bind();

auto height = this->draw_rect_size_list[i] * 5;

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);

this->rect_image_list[i]->unbind();

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);

}

else {

this->rect_image_list[i]->update();

this->rect_image_list[i]->getTexture().bind();

ofSetColor(128);

ofFill();

ofDrawBox(glm::vec3(), this->rect_size);

this->rect_image_list[i]->unbind();

ofSetColor(239);

ofNoFill();

ofSetLineWidth(1);

ofDrawBox(glm::vec3(), this->rect_size);

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210623

2025年10月
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