Extract individual criteria from imat_filt.
x=criteria(z)
CRITERIA returns a cell array X whose contents are imat_filt variables with the individual criteria composing the imat_filt Z. In this process, the desired combination (and, or, not) is lost.
For example, if z1, z2, and z3 are single-criterion filters, and z=(z1&(z2|z3)), then x=criteria(z) returns x such that x{1}=z1, etc.