QT学习02：Qt4配置OpenCV3

Qt Creator配置openCV4开发环境_司悟愛帥的博客-CSDN博客_qt配置opencv4

QT下的图片路径不能有汉字，否者会报错或图片是黑色

#配置opencv
INCLUDEPATH +=D:Developmentopencv3.4.6OpenCV-MinGW-Build-OpenCV-3.4.6include 
              D:Developmentopencv3.4.6OpenCV-MinGW-Build-OpenCV-3.4.6include 
              D:Developmentopencv3.4.6OpenCV-MinGW-Build-OpenCV-3.4.6includeopencv2

LIBS +=D:Developmentopencv3.4.6OpenCV-MinGW-Build-OpenCV-3.4.6x86mingwliblibopencv_*.a

//main.cpp
#include "mainwindow.h"
#include 
#include 
using namespace cv;

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Mat img = imread("E:\cProjects\img01.jpg"); //路径不能有汉字
    imshow("img",img);
    return a.exec();
}