#include "pch.h"
#include <opencv2/opencv.hpp>
#include <iostream>
using namespace cv;
int main(int argc, char** argv) {
Mat src, src2, dst, dst2;
src = imread("D:/hv.png");
src2 = imread("D:/a.png");
if (!src.data) {
printf("could not load image...\n");
return -1;
}
char INPUT_WIN[] = "input image";
char OUTPUT_WIN[] = "result image";
namedWindow(INPUT_WIN, CV_WINDOW_AUTOSIZE);
imshow(INPUT_WIN, src);
imshow("input", src2);
//灰度圖
Mat gray_src;
cvtColor(src, gray_src, CV_BGR2GRAY);
Mat gray_src2;
cvtColor(src2, gray_src2, CV_BGR2GRAY);
//imshow("gray image", gray_src);
//二值操作
Mat binImg;
adaptiveThreshold(~gray_src, binImg, 255, ADAPTIVE_THRESH_MEAN_C, THRESH_BINARY, 15, -2);
Mat binImg2;
adaptiveThreshold(~gray_src2, binImg2, 255, ADAPTIVE_THRESH_MEAN_C, THRESH_BINARY, 15, -2);
//imshow("binary image", binImg);
// 水平結構元素
Mat hline = getStructuringElement(MORPH_RECT, Size(src.cols / 16, 1), Point(-1, -1));
// 垂直結構元素
Mat vline = getStructuringElement(MORPH_RECT, Size(1, src.rows / 16), Point(-1, -1));
// 矩形結構
Mat kernel = getStructuringElement(MORPH_RECT, Size(3, 3), Point(-1, -1));
//得到圖像中的水平線
Mat temp;
morphologyEx(binImg, dst, CV_MOP_OPEN, vline);
bitwise_not(dst, dst);
//blur(dst, dst, Size(3, 3), Point(-1, -1));
imshow("vline", dst);
morphologyEx(binImg, dst, CV_MOP_OPEN, hline);
bitwise_not(dst, dst);
imshow("hline", dst);
morphologyEx(binImg2, dst2, CV_MOP_OPEN, kernel);
bitwise_not(dst2, dst2);
imshow("ABCD", dst2);
waitKey(0);
return 0;
}
效果圖
