Converting cv::Mat to IplImage*

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cv::Mat is the new type introduce in OpenCV2.X while the IplImage* is the “legacy” image structure.

Although, cv::Mat does support the usage of IplImage in the constructor parameters, the default library does not provide function for the other way. You will need to extract the image header information manually. (Do remember that you need to allocate the IplImage structure, which is lack in your example).

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