# GPT Image Hub prompt

## 양방향 착시 초상화
- URL: https://www.gptimagehub.com/ko/library/dual-orientation-optical-illusion-portrait
- Generator URL: https://www.gptimagehub.com/ko/generate?promptId=oss-ym-mm-10302
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fko%2Flibrary%2Fdual-orientation-optical-illusion-portrait
- Category: 포스터 및 일러스트
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 4:5
- Style: illustration
- Tags: 착시, 모노크롬, 벡터 아트, 선화, 초상화, 미니멀리즘, 무아레
- Updated: 2026-10-27T10:55:43.098Z
- Created: 2026-10-27T10:55:43.098Z

정방향과 180도 회전 시 각기 다른 얼굴이 나타나는 흑백 착시 초상화를 생성합니다. 대상 인물 조합과 기하학적 선 패턴을 변경하여 다양하게 변형할 수 있습니다.

### Full prompt
```text
A dual-orientation optical illusion portrait. When viewed upright (0° orientation), the artwork clearly depicts [a young woman's left-facing side profile]. When rotated 180 degrees upside down, the exact same composition reveals [an elderly woman's side profile]. Both figures share identical contour lines and spatial boundaries with no split screens, overlays, or separate drawings. The transformation relies entirely on contour reinterpretation and structural ambiguity: the young woman's chin functions as the elderly woman's nose upon rotation; the young woman's ear forms the elderly woman's eye socket; the young woman's neckline forms the elderly woman's mouth and chin. Style: Moiré interference pattern rendered with ultra-thin radial or dual-frequency vector lines across the composition, creating optical depth without breaking the illusion. Strict monochrome palette with pure black background (#000000) and sharp white to light gray linework. Tonal gradients created solely through line density. Ultra-precise vector alignment, razor-sharp silhouette edges, no blur, no texture noise.
```