X-ray fluorescence imaging (XRFI) is a promising diagnostic method with respect to the geometrically complex fluids in high-energy-density physics, including experimental astrophysics and inertial confinement fusion, because of its capability of detecting localized information. In this study, we have conducted a proof-of-principle experiment with respect to XRFI at the Shenguang-Ⅲ prototype laser facility. In this experiment, a static object comprising poly-4-methyl-1-pentene foam and titanium dioxide nanoparticles was pumped with vanadium plasma radiation, resulting in the emission of titanium K-shell fluorescent photons. A flat-crystal spectrometer dispersed and imaged these fluorescent photons, and one-dimensional spatially resolved intensity profiles were successfully obtained. Further, the fluorescent intensity profiles were quantitatively simulated based on the theories related to fluorescence production and flat-crystal imaging, denoting good agreement with the experimental results. This research is directly useful for the application of XRFI to hydrodynamic experiments in case of complex geometries.