In the computer graphics field, the microfacets theory has been a hypothesis in many studies as an effective model for expressing light's reflection from a rough surface, but no studies actually observe microfacets as images. To establish a thin-film interference color simulation of a titanium oxide film based on a physical model in this study, we attempted obser- vation via an optical microscope to obtain a microfacet normal distribution model in an oxide-layered coating on titanium. Then, we successfully observed properties or optical phenomena corresponding to the microfacet concept (theory). We verified the acquired microfacet images and proposed a method to calculate the microfacets’normal distribution via color image analysis. Thus, the calculated distribution was considered a typical Gaussian distribution with an added distortion component.
