身份锁定的图像转换

身份锁定 — 面部保留模式

提供的参考图像：[附上 1–3 张主体的清晰参考照片]

核心指令：
你正在对提供的参考图像执行定向视觉转换。  
主体的面部身份已锁定，绝不能以任何方式更改、重建或平均化。最终输出中的面部必须能够明确无误地识别为参考图像中显示的完全相同的个体。

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身份特征 — 禁止更改：
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- 整体脸型和颅骨结构  
- 眼睛形状、间距、深度和眼睑轮廓  
- 鼻梁宽度、鼻尖形状和鼻孔  
- 嘴唇轮廓、丘比特弓形状、丰满比例（上唇与下唇）  
- 下巴线条定义和下巴形状  
- 颧骨位置和面部宽度  
- 额头高度和眉脊  
- 皮肤纹理、底色和种族特征标记  
- 独特的面部特征：痣、雀斑、酒窝、疤痕、不对称性  
- 面部特征间距离（眼距、鼻唇距、唇下巴距）

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允许更改（非身份元素）：
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- 服装、面料、材质和配饰  
- 环境、场景和背景  
- 光线方向、色温和强度  
- 色彩分级和整体图像色调  
- 摄像机角度、构图和画面布局  
- 身体姿势、手势和站姿  
- 艺术风格或类型（例如：电影感、绘画风、杂志风）— 若有要求  
- 微小的面部表情变化（轻微微笑、平静、沉思）  
  仅限在现有面部结构上的微调 — 不得通过重建面部实现

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绝对禁止事项：
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- 不得用平均化、美化或通用面部替换原面部  
- 不得应用改变面部比例的美颜增强  
- 不得使主体显得更年轻、更年长或改变性别  
- 不得更改种族或人种特征  
- 不得过度磨皮导致纹理和独特性消失  
- 不得以光照、风格或类型变化为名修改脸型  
- 不得以任何理由从头重建面部

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质量目标：
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输出需达到照片级真实感。皮肤纹理自然。次表面散射准确。  
主体与环境之间的光照需一致。当输出图像与参考图像并列时，主体必须能通过“同一人”识别测试。面部相似性优先于风格化修饰。

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转换请求：
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{{change_request}}

IDENTITY LOCK — FACIAL PRESERVATION MODE

Reference Image(s) Provided: [attach 1–3 clear reference photos of the subject]

CORE DIRECTIVE:
You are performing a targeted visual transformation on the provided reference image(s). 
The subject's facial identity is LOCKED and must not be altered, reconstructed, or averaged 
under any circumstance. The face in the final output must be unmistakably recognizable as 
the exact same individual shown in the reference image(s).

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IDENTITY ELEMENTS — DO NOT CHANGE:
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- Overall face shape and skull structure
- Eye shape, spacing, depth, and lid contour
- Nose bridge width, tip shape, and nostrils
- Lip contour, cupid's bow shape, fullness ratio (upper vs. lower lip)
- Jawline definition and chin shape
- Cheekbone placement and facial width
- Forehead height and brow ridge
- Skin texture, undertone, and ethnicity markers
- Distinctive facial features: moles, freckles, dimples, scars, asymmetries
- Inter-feature distances (eye-to-eye, nose-to-lip, lip-to-chin)

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PERMITTED CHANGES (non-identity elements):
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- Clothing, fabric, materials, and accessories
- Environment, setting, and background
- Lighting direction, color temperature, and intensity
- Color grading and overall image tone
- Camera angle, framing, and composition
- Body pose, gesture, and stance
- Artistic style or genre (e.g., cinematic, painterly, editorial) — IF requested
- Subtle facial expression changes (slight smile, calm, thoughtful) 
  ONLY as micro-adjustments ON THE EXISTING FACE STRUCTURE — not by rebuilding the face

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ABSOLUTE PROHIBITIONS:
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- Do NOT replace the face with an averaged, idealized, or generic face
- Do NOT apply beauty enhancement that alters facial proportions
- Do NOT make the subject appear younger, older, or a different gender
- Do NOT change ethnicity or racial features
- Do NOT smooth skin to the point of erasing texture and distinctiveness
- Do NOT modify face shape under the guise of lighting, style, or genre change
- Do NOT reconstruct the face from scratch for any reason

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QUALITY TARGET:
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Photorealistic output. Natural skin texture. Accurate subsurface scattering.
Coherent lighting between subject and environment. The subject must pass 
a "same person" recognition test when the output is placed side-by-side 
with the reference image. Facial similarity takes priority over stylistic polish.

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TRANSFORMATION REQUEST:
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{{change_request}}