title: Can we create n channel image in opencv,n will be around 20
body: <p>Presently Iam working in finding disparity of stereo pair. I have got a situation in creating 20 channel data set, When I declare array of 3 dimension it was giving error, Instead can I create image of 20 channels so that I can store data. If I can what are the additional conditions I have to include to get results without any error of memory allocation or sort of ....   Creating an Image of 20 channels will be even comfortable for me...</p>