在opencv split中为生成的三个通道的数据生成了新的内存区域
测试代码如下
#include <opencv2/opencv.hpp>
#include <iostream>
#include <stdio.h>
using namespace cv;
int main(int argc, char const *argv[]){
Mat dilate_element = getStructuringElement(MORPH_ELLIPSE, Size(90, 100)); //0.01-2ms
Mat in_img = imread("/home/y/ck_wp/mp_camera/src/armor_detect/res/test_armor.jpg");
printf("%x\n",in_img.data);
imshow("origin",in_img);
waitKey(0);
Mat cha[3];
split(in_img,cha);
imshow("cha1 origin",cha[0]);
waitKey(0);
printf("%x\n",cha[0].data);
printf("%x\n",cha[1].data);
printf("%x\n",cha[2].data);
dilate(cha[0], cha[0], dilate_element, Point(-1,-1), 1); //原值通道二值化后膨胀
imshow("cha1 change",cha[0]);
waitKey(0);
imshow("origin img after change",in_img);
waitKey(0);
}
