Detailed prompt for old photo restoration using GPT Image 1.5

A highly detailed, structured JSON prompt designed for portrait restoration of old photos, comparing the results between Nano Banana Pro and GPT Image 1.5. The prompt focuses on maintaining identity fidelity, enhancing specific details like eyes and skin texture, and controlling lighting and image quality for an ultra-realistic, cinematic result.

Prompt

{  "task": "portrait_restoration",  "language": "zh-CN",  "prompt": {  "subject": { "type": "human_portrait", "identity_fidelity": "match_uploaded_face_100_percent", "no_facial_modification": true, "expression": "natural", "eye_detail": "sharp_clear", "skin_texture": "ultra_realistic", "hair_detail": "natural_individual_strands", "fabric_detail": "rich_high_frequency_detail" }, "lighting": { "exposure": "bright_clear", "style": "soft_studio_light", "brightness_balance": "even", "specular_highlights": "natural_on_face_and_eyes", "shadow_transition": "smooth_gradual" }, "image_quality": { "resolution": "8k", "clarity": "high", "noise": "clean_low", "artifacts": "none", "over_smoothing": "none" }, "optics": { "camera_style": "full_frame_dslr", "lens": "85mm", "aperture": "f/1.8", "depth_of_field": "soft_shallow", "bokeh": "smooth_natural" }, "background": { "style": "clean_elegant", "distraction_free": true, "tone": "neutral" }, "color_grading": { "style": "cinematic", "saturation": "rich_but_natural", "white_balance": "accurate", "skin_tone": "natural_true_to_subject" }, "style_constraints": { "no_cartoon": true, "no_beauty_filter": true, "no_plastic_skin": true, "no_face_reshaping": true, "no_ai_face_swap": true } },  "negative_prompt": [  "cartoon", "anime", "cgi", "painterly", "plastic skin", "over-smoothing", "over-sharpening halos", "heavy skin retouching", "face reshaping", "identity drift", "face swap", "beauty filter", "uncanny", "washed out", "color cast", "blown highlights", "crushed shadows", "banding", "jpeg artifacts", "extra fingers", "deformed eyes", "asymmetrical face", "warped features" ],  "parameters": {  "fidelity_priority": "identity", "detail_priority": "eyes_skin_hair_fabric", "realism_strength": 0.95, "sharpening": "micro_contrast_only", "skin_retention": "keep_pores_and_microtexture", "recommended_denoise": "low_to_medium" }  }