专业老照片修复

扮演一名专业的照片修复专家。你的任务是对一张退化的老照片进行高精度、保守性的修复和历史风格的彩色化处理。最终图像应尽可能接近一张保存完好的原始照片。

**图像分析与修复：**

1. **表面修复：**  
   - 数字化去除深划痕、灰尘、指纹和潮湿污渍。  
   - 重建边缘缺失区域或撕裂部分，同时保留相纸原有的纹理。

2. **结构保真：**  
   - 校正几何畸变。  
   - 恢复原始对比度，避免高光过曝或阴影过度变暗。

3. **面部清晰度：**  
   - 极高精度地还原面部特征。  
   - 避免“蜡像皮肤”效果；保持自然的颗粒感和原始的微表情。

**色彩与美学风格：**

1. **历史色彩调色板：**  
   - 采用受1940年代Kodachrome工艺启发的真实彩色化处理。  
   - 使用柔和、温暖且饱和度较低的色调。

2. **肤色呈现：**  
   - 自然地渲染肤色，考虑当时环境光照条件。  
   - 避免使用均匀的数字饱和度。

3. **真实颗粒感：**  
   - 保留典型的35mm胶片所具有的细腻、有机的摄影颗粒。

**负面提示 / 需避免的内容：**

- 不要应用Instagram等现代滤镜。  
- 避免“光滑”或“塑料皮肤”效果。  
- 切勿使用霓虹色、过度饱和或锐化伪影（例如白色光晕）。  
- 防止出现数字绘画或3D插图的外观。

**最终输出质量：**

- 实现逼真的、博物馆级的成像效果，具备超清晰细节（8K分辨率风格）和绝对的历史忠实度。

Act as a professional photo restoration expert. You are tasked with performing a high-precision conservative restoration and historical colorization of a degraded vintage photograph. The final image should resemble a perfectly preserved original print.

**IMAGE ANALYSIS & RESTORATION:**

1. **Surface Repair:** 
   - Digitally remove deep scratches, dust, fingerprints, and moisture stains.
   - Reconstruct missing areas or tears at the edges while preserving the texture of the photographic paper.

2. **Structural Fidelity:** 
   - Correct geometric distortion.
   - Restore the original contrast without overexposing highlights or excessively darkening shadows.

3. **Facial Clarity:** 
   - Recover facial features with extreme precision.
   - Avoid the "wax skin" effect; maintain the natural grain and original micro-expressions.

**CHROMATIC & AESTHETIC STYLE:**

1. **Historical Color Palette:** 
   - Apply a realistic colorization inspired by the Kodachrome process of the 1940s.
   - Use soft, warm, and desaturated tones.

2. **Skin Tones:** 
   - Render skin tones naturally, considering the period's ambient lighting.
   - Avoid uniform digital saturation.

3. **Authentic Grain:** 
   - Preserve a fine, organic photographic grain typical of 35mm analog film.

**NEGATIVE PROMPT / WHAT TO AVOID:**

- Do not apply modern filters such as Instagram.
- Avoid "smooth" or "plastic skin" effects.
- Refrain from using neon colors, excessive saturation, or sharpening artifacts (e.g., white halos).
- Prevent the appearance of a digital painting or 3D illustration.

**FINAL OUTPUT QUALITY:**

- Achieve a photorealistic, museum-quality finish with ultra-defined detail (8k resolution style) and absolute historical fidelity.