如何将cv :: Mat转换为MFC CBitmap [英] How to convert cv::Mat to MFC CBitmap

问题描述

如何将OpenCV映像转换为Microsoft基础类(MFC)CBitmap对象?

how can I convert an OpenCV image to an Microsoft Foundation Classes (MFC) CBitmap object?

我尝试了以下操作，但失败了，

I tried the following, which failed,

    cv::Mat tmp;
    (Load opencv image ...)

    cv::Size size = tmp.size();
    CBitmap bitmap;
    // 3 colors (RGB), 24bits (8bits*3channels) 
    if (!bitmap.CreateBitmap(128, 128, 1, 24, (void *)tmp.data)) {
        TRACE0("Failed to create bitmap for image display\n");
        return;
    }

这将导致黑色图像.

推荐答案

帖子分享了将IplImage转换为CBitmap的方法:

This post shares the method of converting an IplImage to CBitmap:

CBitmap* IplImageToCBitmap(IplImage* img) 
{
    CDC dc;
    CDC memDC;

    if (!dc.CreateDC("DISPLAY", NULL, NULL, NULL))
        return NULL;

    if (!memDC.CreateCompatibleDC(&dc))
        return NULL;

    CBitmap* bmp = new CBitmap();
    CBitmap* pOldBitmap;

    bmp->CreateCompatibleBitmap(&dc, img->width, img->height);
    pOldBitmap = memDC.SelectObject(bmp);

    CvvImage cvImage; // you will need OpenCV_2.2.0- to use CvvImage 
    cvImage.CopyOf(img);
    cvImage.Show(memDC.m_hDC, 0, 0, img->width, img->height, 0, 0);
    cvImage.Destroy();

    memDC.SelectObject(pOldBitmap);
    memDC.DeleteDC();
    dc.DeleteDC();

    return bmp;
}

基于此，您可以通过如下调用来实现您的目标:

Based on this, you can achieve your goal by calling it as follows:

cv::Mat aMat;
CBitmap *aCBitmap = IplImageToCBitmap((IplImage*) &aMat);

这篇关于如何将cv :: Mat转换为MFC CBitmap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IT屋！