高对比度黑白编辑肖像提示，适用于 Nano Banana 2

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```json { "metadata": { "image_type": "照片", "primary_purpose": "编辑" }, "composition": { "rule_applied": "三分法构图", "aspect_ratio": "4:5", "layout": "单主体", "focal_points": [ "主体的脸部和太阳镜", "外套的纹理羊羔绒领" ], "visual_hierarchy": "视线从高对比度的脸部和太阳镜开始，沿着外套翻领的纹理线条向下移动，然后柔和地转向模糊的背景元素", "balance": "不对称" }, "color_profile": { "dominant_colors": [ { "color": "黑色", "hex": "#0a0a0a", "percentage": "45", "role": "主要主体" }, { "color": "中灰色", "hex": "#7a7a7a", "percentage": "35", "role": "背景" }, { "color": "白色", "hex": "#f5f5f5", "percentage": "20", "role": "点缀" } ], "color_palette": "单色", "temperature": "中性", "saturation": "黑白", "contrast": "高对比度" }, "lighting": { "type": "自然窗户/户外日光", "source_count": "单一光源", "direction": "45 度侧面", "directionality": "高度定向", "quality": "硬光", "intensity": "戏剧性", "contrast_ratio": "高对比度（戏剧性阴影）", "mood": "戏剧性", "shadows": { "type": "清晰分明的边缘", "density": "深黑色", "placement": "脸部右侧、颈部和外套内褶", "length": "短" }, "highlights": { "treatment": "保留", "placement": "在脸部、鼻梁、左颧骨和外套翻领上" }, "ambient_fill": "无", "light_temperature": "中性" }, "technical_specs": { "medium": "数码摄影", "style": "写实", "texture": "锐利", "sharpness": "极度锐利", "grain": "胶片颗粒", "depth_of_field": "浅景深", "perspective": "正面" }, "artistic_elements": { "genre": "肖像", "influences": [ "经典电影肖像", "时尚编辑摄影" ], "mood": "精致", "atmosphere": "忧郁、沉思、时尚粗犷", "visual_style": "干净" }, "typography": { "present": false, "fonts": [ { "type": "无衬线字体", "weight": "常规", "characteristics": "现代" } ], "placement": "背景", "integration": "微妙" }, "subject_analysis": { "primary_subject": "留着短胡须、发型时尚、戴着太阳镜、穿着深色高领毛衣和厚重深色羊羔绒内衬外套的成年男性模特", "positioning": "三分法构图", "scale": "中等", "interaction": "孤立", "facial_expression": { "mouth": "中性", "smile_intensity": "无笑容", "eyes": "墨镜后直视，目光避开镜头", "eyebrows": "中性", "overall_emotion": "严肃", "authenticity": "摆拍" }, "hands_and_gestures": { "left_hand": "不可见", "right_hand": "不可见", "finger_positions": "放松", "finger_interlacing": "无", "hand_tension": "放松", "interaction": "无", "naturalness": "自然" } } } ```