C++ IplImage to Mat
时间: 2024-05-05 11:17:12 浏览: 9
To convert an IplImage to a Mat in OpenCV, you can use the following code:
```c++
// Assume we have an IplImage called iplImage
Mat matImage(iplImage);
```
This will create a new Mat object called `matImage` that shares the same image data as the IplImage. Note that this only works if the IplImage was created with the `IPL_DEPTH_8U` depth and a 3-channel color format (such as `IPL_DEPTH_8U` and `IPL_DEPTH_8S`). If your IplImage has a different depth or format, you will need to manually copy the image data to a new Mat object.
相关问题
C++ Mat to IplImage
To convert a Mat object to an IplImage object in OpenCV, you can use the following code:
```c++
Mat matImage;
IplImage* iplImage = cvCreateImage(cvSize(matImage.cols, matImage.rows), IPL_DEPTH_8U, matImage.channels());
iplImage->widthStep = matImage.step;
memcpy(iplImage->imageData, matImage.data, matImage.step * matImage.rows);
```
First, create a Mat object named `matImage` that you want to convert to an IplImage object. Then, create an empty IplImage object using the `cvCreateImage()` function and passing in the width, height, and number of channels of the Mat object. Set the `widthStep` of the IplImage object to the `step` of the Mat object. Finally, use the `memcpy()` function to copy the data from the Mat object to the IplImage object.
Note that the `cvCreateImage()` function creates an IplImage object with the same number of channels as the Mat object. If you want to convert a Mat object with 3 channels to an IplImage object with 1 channel, for example, you need to create a new IplImage object with only 1 channel and then copy the data from the Mat object to the new IplImage object.
mat转cvvimage
你是想将MAT类型的图像转换为OpenCV中的cv::Mat类型吗?如果是这样,可以尝试以下代码:
```c++
cv::Mat matImage = cv::cvarrToMat(&iplImage);
```
其中,iplImage是IplImage类型的图像,可以通过以下代码将MAT类型的图像转换成IplImage类型的图像:
```c++
IplImage iplImage = matImage;
```
如果你想将MAT类型的图像保存为图像文件,可以使用以下代码:
```c++
cv::imwrite("image.jpg", matImage);
```
其中,"image.jpg"是保存的文件名,可以根据需要更改。