Intensities derived using the new semi-analytic method, divided by those directly derived using monochromatic radiative transfer simulations. As for Fig. 17, the top and bottom panels show images for the face-on view (i=0°–26°) and the intermediate viewing angle (i=37°–46°), respectively. In each panel, the region below the white dashed curve, that are associated with the emission from the outer disk edge, show large variations. These regions were not included in our analysis to verify the calculations (see text for details).