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MareArts / calHistforGrayImage.cpp

Last active December 29, 2017 00:16

To make histogram for gray image

	http://study.marearts.com/2017/12/calchist-for-rgb-image-opencv-histogram.html
	#include "opencv2/opencv.hpp"
	#include "opencv2\highgui.hpp"
	#include <iostream>


	#ifdef _DEBUG
	#pragma comment(lib, "opencv_core331d.lib")
	#pragma comment(lib, "opencv_highgui331d.lib")
	#pragma comment(lib, "opencv_imgcodecs331d.lib")

MareArts / BinaryHistogram.cpp

Last active December 28, 2017 18:04

Feature extraction using histogram

	http://study.marearts.com/2013/09/opencv-make-histogram-and-draw-example.html

	#include "opencv2/opencv.hpp"
	#include "opencv2\highgui.hpp"
	#include <iostream>


	#ifdef _DEBUG
	#pragma comment(lib, "opencv_core331d.lib")
	#pragma comment(lib, "opencv_highgui331d.lib")

MareArts / makeHistogram_withoutOpencv.cpp

Last active December 28, 2017 20:41

OpenCV Lecture, histogram example source code.

	http://study.marearts.com/2017/12/gray-image-histogram-without-opencv.html

	#include "opencv2/opencv.hpp"
	#include "opencv2\highgui.hpp"
	#include <iostream>


	#ifdef _DEBUG
	#pragma comment(lib, "opencv_core331d.lib")
	#pragma comment(lib, "opencv_highgui331d.lib")

MareArts / Histogram_cam.cpp

Last active October 19, 2017 09:26

Cam Histogram Test

	http://study.marearts.com/2017/10/webcam-histogram-test-opencv.html

	#include "opencv2/opencv.hpp"
	#include "opencv2\cudaarithm.hpp"

	#include <iostream>
	#include <time.h>

	#ifdef _DEBUG
	#pragma comment(lib, "opencv_core320d.lib")

MareArts / ice_waldboost.cpp

Last active October 2, 2017 18:43

ICF(Integral Channel Features) + WaldBoost example (opencv, ICFDetector uses example) - step3 (detection part)

	void main()
	{

	cv::xobjdetect::ICFDetector icf_detector;

	// model loading
	cv::FileStorage cvfs("icf_model.txt", cv::FileStorage::READ);
	icf_detector.read(cvfs["icf"]);

	// test image

MareArts / ICF_waldboost.cpp

Created October 2, 2017 18:41

ICF(Integral Channel Features) + WaldBoost example (opencv, ICFDetector uses example) - step 0

	int main(int, char)
	{
	int showOrno = 1;

	FILE* fp1;
	fopen_s(&fp1, "positive.txt", "w");
	int n = 1500; //positive data count
	char str[100];
	//char str1[100] = "M:\\____videoSample____\\Pedestrian\\6464\\"; //base path
	char str1[100] = "M:\\____videoSample____\\Pedestrian\\"; //base path

MareArts / ICF_WaldBoost.cpp

Last active October 2, 2017 18:44

ICF(Integral Channel Features) + WaldBoost example (opencv, ICFDetector uses example) - step1 (learning)

	http://study.marearts.com/2016/01/icfintegral-channel-features-waldboost.html

	void main()
	{
	cv::String pos_list = "positive.txt"; // positive image list
	cv::String neg_list = "negative.txt"; // negative image list

	//cv::String pos_list = "poslist.txt"; // positive image list
	//cv::String neg_list = "neglist.txt"; // negative image list

MareArts / twoImageStitching.cpp

Created September 30, 2017 18:54

Two Image mosaic (paranoma) based on SIFT / C++ source

	http://study.marearts.com/2011/08/two-image-mosaic-paranoma-based-on-sift.html?showComment=1505809273523#c4127439791336787413

	#include < iostream>
	#include < cv.h>
	#include < cxcore.h>
	#include < highgui.h>


	using namespace std;

MareArts / overlapPercent.cpp

Last active August 29, 2020 07:42

openCV Tip, Calculate overlap percent between two rectangle.

	http://study.marearts.com/2017/09/opencv-tip-calculate-overlap-percent.html
	Mat canvas(100, 100, CV_8UC3);
	canvas.setTo(0);

	Rect rectA(10, 5, 50, 60);
	Rect rectB(40,40,30, 40);
	Rect andRect_overlap = (rectA & rectB);
	Rect orRect_whole = (rectA \| rectB);

	cout << "rect A info. : " << rectA << endl;

MareArts / checkZeroOpenCV.cpp

Last active September 24, 2017 16:09

Tip, How to count number of '0' in element of Matrix(Mat)?

	http://study.marearts.com/2017/09/tip-how-to-count-number-of-0-in-element.html

	Mat a = Mat(5, 5, CV_8UC1);
	randn(a, 0, 1);

	Mat b = (a == 0) / 255;
	Mat c = (a > 0) / 255;

	cout << "Input matrix matrix a = " << endl;
	cout << a << endl;