如何将 OpenCV cv::Mat 转换为 QImage [英] How to convert an OpenCV cv::Mat to QImage

问题描述

我想知道如何将 OpenCV C++ 标准 cv::Mat 类型转换为 QImage.我一直在四处寻找，但没有运气.我发现了一些将 IPlimage 转换为 QImage 的代码，但这不是我想要的.谢谢.

I am wondering how would I convert the OpenCV C++ standard cv::Mat type to QImage. I have been searching around, but have no luck. I have found some code that converts the IPlimage to QImage, but that is not what I want. Thanks.

推荐答案

Michal Kottman 的回答是有效的，并且对某些图像给出了预期的结果，但在某些情况下会失败.这是我找到的解决该问题的方法.

Michal Kottman's answer is valid and give expected result for some images but it'll fail on some cases. Here is a solution i found to that problem.

QImage imgIn= QImage((uchar*) img.data, img.cols, img.rows, img.step, QImage::Format_RGB888);

不同之处在于添加了 img.step 部分.没有它，qt 不会抱怨，但如果没有它，某些图像将无法正常显示.希望这会有所帮助.

Difference is adding img.step part. qt won't complain without it but some images won't show properly without it. Hope this will help.

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