How to convert an 8-bit OpenCV IplImage* to a 32-bit IplImage*?

Question

I need to convert an 8-bit IplImage to a 32-bits IplImage. Using documentation from all over the web I\'ve tried the following things:

// general code
img2 =         


        

Answer 1

If you do not put the dot (.), some compilers will understand is as an int division, giving you a int result (zero in this case).