Buncheong Ware Case Study
This case compares two front-view images of the same Buncheong ware object. The comparison examines how lighting conditions affect the visibility of surface texture, specular highlights, colour information, and ceramic materiality.
Control Condition
Direct bilateral softbox lighting was used as the baseline condition. This image provides a clear front-view record, but strong specular highlights appear on the ceramic surface.
Variable Condition
The lighting condition was adjusted using ceiling bounce lighting and a reflector. This condition reduces strong highlights and makes surface information more stable.
Buncheong Ware: Control Condition Front View
Buncheong Ware: Variable Condition Front View
1. Quantitative Paradata: Technical Requirement
This table compares the technical and physical conditions under which the two images were produced.
| Category | Control Condition | Variable Condition |
|---|---|---|
| Image role | Control condition image | Variable condition image |
| View type | Front view | Front view |
| Lighting type | Bilateral softbox lighting | Ceiling bounce lighting with reflector-assisted diffused light |
| Light distance | Approximately 1 m from the object | Not recorded |
| Incident method | Direct light from left and right softboxes | Direct frontal light was reduced by bouncing the light source toward the ceiling |
| Auxiliary device | Not used | Reflector used |
| Camera setting | ISO 100 / f/11 / 1/125s / 50mm | ISO 250 / f/11 / 1/125s / 50mm |
| File generation | RAW-derived cropped JPEG image | RAW-derived cropped JPEG image |
| Colour profile | sRGB | sRGB |
2. Qualitative Paradata: Reproduction Note
This table compares the interpretive and observational notes recorded for each image.
| Category | Control Condition | Variable Condition |
|---|---|---|
| Photographic intention | This image was produced as a baseline for comparison with the variable condition image. | This image was produced to reduce strong specular highlights and to record the surface texture and colour information more stably. |
| Problem recognition | Direct light from the left and right softboxes produced bright highlights around the central body and painted pattern. | The control condition image showed that direct light caused partial loss of colour information and surface detail. |
| Adjustment process | No adjustment was applied. The image functions as the control condition. | The direct lighting arrangement was modified by bouncing the light source toward the ceiling and redistributing the diffused light with a reflector. |
| Visual observation | The surface appears smoother and glossier than expected. Subtle surface irregularities, slip texture, and brush-like traces are not sufficiently visible. | Strong highlights are reduced. Colour information around the pattern and background surface is more stable, and surface detail is better preserved. |
| Interpretive significance | The image shows that a visually clear photograph can still obscure or distort material qualities. | The image demonstrates that adjusted lighting can change the visual information available in a digital record. |
Interpretation
The comparison demonstrates that the difference between the two images is not merely a matter of visual preference or image quality. In the control condition image, direct bilateral softbox lighting creates strong specular highlights that reduce surface detail and make the surface appear smoother and glossier. In the variable condition image, bounce lighting and reflector-assisted diffusion reduce these highlights and allow surface texture and colour information to be perceived more stably.
This case shows how paradata can support the interpretation of ceramic digital images. The Technical Requirement field records the physical and technical conditions of image production, while the Reproduction Note field explains photographic intention, visual observation, and interpretive significance. Together, these fields allow the digital image to function not simply as a visual result, but as a record that includes its conditions of production.
Full Media Records
The full metadata records for each image can be accessed through the following media records.