This detail comparison examines how lighting conditions affect the visual separation between the white-glazed ceramic surface and the light background. The two cropped images show the same outer contour under the control and variable lighting conditions.

Detailed Observation

In the control image, the similarity in brightness between the white-glazed surface and the light background weakens the object’s outer edge, particularly along the lower curve. The contour consequently appears less distinct and the curvature is more difficult to perceive. In the variable image, stronger tonal separation at the boundary makes the contour more legible and supports a clearer perception of the vessel’s volume.