Pyramid with finer scale resolution One problem of conventional pyramids is that the size decreasing in every direction by a fixed factor of two. Some applications call for a finer scale resolution....

Pyramid with finer scale resolution

One problem of conventional pyramids is that the size decreasing in every direction by a fixed factor of two. Some applications call for a finer scale resolution. How could you generate a pyramid where the size in both directions decreases not by a factor of two but by a factor of
?

(Hint: You need to find a scheme that selects only every second pixel from a 2-D image.)