I have two matrices, one 1024x1024 and one 101x101. 95% of the matrices consists of zeros, besides the central circular parts which have values ranging between 0 and 1. When displayed, the matrices show a circle.
I want to superimpose the smaller matrix onto the larger matrix in a specific location from the origin of the larger matrix. How can I extract the values from the smaller matrix and superimpose them onto the larger matrix?