Gemini Nano Banana 3.0夜景人像分析

json Gemini Nano Banana 3.0 Prompt: { "detailed_analysis": { "scene_context": { "setting": "Metropolitan street exterior", "time_period": "Night", "ambiance": "Urban, energetic yet intimate", "weather": "Clear night" }, "subject_attributes": { "focus_point": "Face and eyes", "hair_texture": "Wavy, voluminous", "hair_color_hex": "#E6BE8A", "eye_color_hex": "#6B8E23", "skin_texture": "Smooth, natural finish", "clothing_texture": "Ribbed knit fabric" }, "lighting_model": { "primary_source": "Ambient street lighting (Sodium vapor/LED)", "fill_light": "Reflected city glow", "contrast": "Medium-High", "shadows": "Soft, diffused on facial features" }, "color_grading": { "temperature": "Warm foreground (3200K) vs Cool background accents", "saturation": "Natural to slightly vibrant", "key_tones": [ "Warm Amber", "Deep Black", "Pale Peach", "Neon City Blur" ] }, "composition_guide": { "framing": "Close-up portrait", "angle": "Eye-level selfie angle", "visual_hierarchy": [ 1, "Eyes", 2, "Smile/Expression", 3, "Hair", 4, "Blurred City Lights" ] } }, "generation_instructions": { "stable_diffusion_xl": { "positive": "photorealistic selfie, close up portrait, beautiful young woman, blonde wavy hair, green eyes, wearing black ribbed crop top, silver hoop earrings, night city street background, bokeh lights, depth of field, sharp focus on eyes, soft lighting, 8k, raw photo, f/1.8", "negative": "illustration, painting, cartoon, 3d render, blurry, distorted eyes, bad hands, grain, noise, daylight, studio lighting", "sampler": "DPM++ 2M Karras", "cfg_scale": 7, "steps": 40 } } }