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old code

I change IplImage to Mat, but have some problem. I don`t know how change next code:

cvGetImageROI -> ?

cvSetImageROI - > ?

IPL_DEPTH_8U - > ?

cvSet - > ?

[m_img is IplImage]

FillBitmapInfo(bmi, bmp_w, bmp_h, Bpp(), m_img->origin); What is origin in cv::Mat?

m_img->nSize -> ?

cvShowImage - > ?

cvCreateImage - > ?

cvSaveImage - > ?

cvIplROI - > ?

cvConvertImage - > ?

old code

I change IplImage to Mat, but have some problem. I don`t know how change next code:

cvGetImageROI -> ?

cvSetImageROI - > ?

IPL_DEPTH_8U - > ?

cvSet - > ?

[m_img is IplImage]

FillBitmapInfo(bmi, bmp_w, bmp_h, Bpp(), m_img->origin); What is origin in cv::Mat?

m_img->nSize -> ?

cvShowImage - > ?

cvCreateImage - > ?

cvSaveImage - > ?

cvIplROI - > ?

cvConvertImage - > ?