Object scattering in thermal neutron radiography is described using analytically derived point and line spread functions. Applications in the response analysis for a knife-edged slab object have resulted in a new quantitative description of previously described edge scattering distortions that arise from unbalanced scatter. Experimental confirmation of the shape and relative magnitude of these distortions has been obtained. The inclusion of scattering effects in edge-location dimensioning prescriptions and the elucidation of the role of object scattering in the overall imaging system fidelity are presented.