OpenCV Matrix To Binary Image

I have client and server, have an image in client and I want to send this to server. That image is in cv::mat format. Therefore I need to convert this matrix to binary. I have tried memcpy(binImage,,sizeof( binImage's format is char*

How can i convert this matImg to binImg? I don't have any experience about OpenCV.


The following should do the trick:

memcpy(binImage,, matImg.step.p[0]*matImg.rows)

However, I think you can avoid the copy and work directly with

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