[英]How to convert cv::Mat to MFC CBitmap
how can I convert an OpenCV image to an Microsoft Foundation Classes (MFC) CBitmap
object? 如何将OpenCV图像转换为Microsoft基础类(MFC)
CBitmap
对象?
I tried the following, which failed, 我尝试了以下操作,但失败了,
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;
}
this results in a black image.. 这将导致黑色图像。
This post shares the method of converting an IplImage
to CBitmap
: 这篇文章分享了将
IplImage
转换为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;
}
Based on this, you can achieve your goal by calling it as follows: 基于此,可以通过如下调用来实现您的目标:
cv::Mat aMat;
CBitmap *aCBitmap = IplImageToCBitmap((IplImage*) &aMat);
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