  We calculate quasi-exclusive scattering of a virtual photon and a proton or
pion in nuclear targets. This is the first complete calculation of ``color
transparency" and "nuclear filtering " in perturbative QCD. The calculation
includes full integrations over hard interaction kernels and distribution
amplitudes in Feynman -x fractions and transverse spatial separation space $b$.
Sudakov effects depending on $b$ and the momentum transfer $Q^2$ are included.
Attenuation of the hadronic states propagating through the medium is calculated
using an eikonal Glauber formalism. Nuclear correlations are included
explicitly. We find that the color transparency ratio is comparatively
insensitive to theoretical uncertainties inherent in perturbative formalism,
such as choice of infrared cutoff scales. However, the $Q^2$ dependence of the
transparency ratio is found to depend sensitively on the model of the
distribution amplitude, with endpoint-dominated models failing to be dominated
by short-distance. Color transparency experiments should provide an excellent
test of the underlying theoretical assumptions used in the pQCD calculations.
