如何将 OpenCV cv::Mat 转换为 QImage

How to convert an OpenCV cv::Mat to QImage(如何将 OpenCV cv::Mat 转换为 QImage)
本文介绍了如何将 OpenCV cv::Mat 转换为 QImage的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

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.

这篇关于如何将 OpenCV cv::Mat 转换为 QImage的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持编程学习网!

本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除!

相关文档推荐

Rising edge interrupt triggering multiple times on STM32 Nucleo(在STM32 Nucleo上多次触发上升沿中断)
How to use va_list correctly in a sequence of wrapper functions calls?(如何在一系列包装函数调用中正确使用 va_list?)
OpenGL Perspective Projection Clipping Polygon with Vertex Outside Frustum = Wrong texture mapping?(OpenGL透视投影裁剪多边形,顶点在视锥外=错误的纹理映射?)
How does one properly deserialize a byte array back into an object in C++?(如何正确地将字节数组反序列化回 C++ 中的对象?)
What free tiniest flash file system could you advice for embedded system?(您可以为嵌入式系统推荐什么免费的最小闪存文件系统?)
Volatile member variables vs. volatile object?(易失性成员变量与易失性对象?)