Spatial Frequency Effective for Increasing Perceived Glossiness by Contrast Enhancement.

ABSTRACT: It has been suggested that luminance edges in retinal images are potential cues for glossiness perception, particularly when the perception relies on low-luminance specular regions. However, a previous study has shown only statistical correlations between luminance edges and perceived glossiness, not their causal relations. Additionally, although specular components should be embedded at various spatial frequencies depending on the micro-roughness on the object surface, it is not well understood what spatial frequencies are essential for glossiness perception on objects with different micro-roughness. To address these issues, we examined the impact of a sub-band contrast enhancement on the perceived glossiness in the two conditions of stimuli: the Full condition where the stimulus had natu

SUBMITTER: Kiyokawa H 

PROVIDER: S-EPMC7892470 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature