  We discuss a new method of estimating the cosmic infrared background (CIB)
from the spatial properties of infrared maps and give the limits on the CIB
from applying it to the COBE/DIRBE maps. The strongest limits are obtained at
mid- to far-IR where foregrounds are bright, but smooth. If the CIB comes from
matter clustered like galaxies, the smoothness of the maps implies CIB levels
less than $\sim$(10-15) nW/m$^2$/sr over this wavelength range.
