OpenCV putText UTF-8字符 [英] OpenCV putText UTF-8 characters

问题描述

有人能替代OpenCV putText(支持UTF-8字符)吗?如前所述，putText仅适用于ASCII字符，而不适用于UTF-8，例如šŠčČžŽ?

Does anybody have alternative to OpenCV putText (with UTF-8 characters supported) ? As already said, putText is only working for ASCII characters, but not for UTF-8 such as šŠčČžŽ?

推荐答案

如果OpenCV是受Qt支持构建的，则可以使用

If OpenCV was built with Qt support you can use cv::addText() to write that string:

cv::Mat img = cv::imread("C:\\snowflake.jpg");
if (img.empty())
{
    std::cout << "!!! Failed imread()" << std::endl;
    return;
}

cv::addText(img, "áéőúöüóí", cv::Point(100, 50), cv::fontQt("Times"));

但是，如果OpenCV是在没有Qt支持的情况下构建的，则调用cv::addText()将使您的应用程序崩溃，并在控制台上显示以下错误:

However, if OpenCV was built without Qt support, calling cv::addText() will crash your application and the following error will be printed to the console:

OpenCV Error: The function/feature is not implemented (The library is compiled without QT support) in cv::fontQt, file C:\builds\2_4_PackSlave-win32-vc12-shared\opencv\modules\highgui\src\window.cpp, line 409

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