Add another image to an image with an alpha channel?

Question

Programming

There is an Image1 image, there is a second Image2 image with an alpha channel (for example, png).
It is required to overlay Image2 on Image1 given the alpha channel on OpenCV.
I did it through the cvAddWeighted function, it works, but the second image is transparent. It is necessary that the image is superimposed as it is, without transparency.
What can you advise? Maybe there is some option through cvCopy.

Answer 1

And the weights are not zero in the arguments for an hour?