opencv – ページ 6 – プログラミング de 落描き

2021年6月27日2021年6月27日

MP4 * Noise. Draw by openFrameworks

[ Video ]

[ About ]
ofNoise()の値で描写する範囲を決める。
それぞれの範囲はofSetColor(ofMap(value, 0, max_of_max, 0, 255))で明暗を付ける。

Determine the range to be drawn by the value of ofNoise().
Each area is lightened or darkened with ofSetColor(ofMap(value, 0, max_of_max, 0, 255)).

[ 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 2740.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() * 0.5) % 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 (ofNoise(this->cv_rect_list[i].x * 0.01, this->cv_rect_list[i].y * 0.01, ofGetFrameNum() * 0.01) < 0.5) {

			this->draw_rect_size_list[i] = 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 2740.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() * 0.5) % 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 (ofNoise(this->cv_rect_list[i].x * 0.01, this->cv_rect_list[i].y * 0.01, ofGetFrameNum() * 0.01) < 0.5) {

this->draw_rect_size_list[i] = 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/Insta20210627

[ Kinako ]

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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

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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

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