imread（openCV），QString unicode [英] imread(openCV),QString unicodes

问题描述

cv::Mat img = cv::imread("../赤月/lena.jpg");
if(img.empty()) std::cout<<"empty image"<<std::endl;

或

QString const image_name = "../赤月/lena.jpg";
cv::Mat img = cv::imread(image_name_.toAscii().constData());
if(img.empty()) std::cout<<"empty image"<<std::endl;

imread的api接受std :: string，如果我需要unicode支持怎么办？

The api of imread accept std::string, what if I need unicode support?

推荐答案

在Niko显示链接后，我知道如何通过Qt解决问题

After Niko show me the link, I know how to solve the problem by Qt

QTextCodec *codec = QTextCodec::codecForName("UTF-8");
QTextCodec::setCodecForLocale(codec);
QTextCodec::setCodecForCStrings(codec);
QTextCodec::setCodecForTr(codec);

QString const image_name = "../赤月/lena.jpg";
cv::Mat img = cv::imread(image_name_.toAscii().constData());

现在的代码工作得很好，感谢大家。

Now the codes work perfectly, thanks to all of you.

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