适用于 Gemini Nano Banana 2 的单色编辑风肖像提示词

提示词

{   "metadata": {     "image_type": "照片",     "primary_purpose": "社论/肖像"   },   "composition": {     "rule_applied": "三分法和一点透视",     "aspect_ratio": "2:3",     "layout": "非对称的单一主体构图，具有深远的环境背景",     "focal_points": [       "右侧主体明亮的脸部",       "左侧柱廊深远的消失点"     ],     "visual_hierarchy": "由于对比，视线先落在右侧主体的脸上，随后沿着他深色的轮廓向下移动，再跟随柱子重复的对角线延伸至最左侧深远的消失点。",     "balance": "非对称——右前景中主体厚重、深色的体量与左侧向深处退去、反差强烈的重复结构元素形成平衡"   },   "color_profile": {     "dominant_colors": [       {         "color": "黑色",         "hex": "#0a0a0a",         "percentage": "45%",         "role": "主体服装和深层建筑阴影"       },       {         "color": "浅灰色",         "hex": "#c8c8c8",         "percentage": "35%",         "role": "混凝土柱和地面的受光面"       },       {         "color": "中灰色",         "hex": "#6e6e6e",         "percentage": "20%",         "role": "阴影过渡和环境背景"       }     ],     "color_palette": "单色",     "temperature": "中性",     "saturation": "黑白",     "contrast": "高对比度"   },   "lighting": {     "type": "自然窗光/拱门光",     "source_count": "多个光源——左侧重复的拱门充当大型柔光箱",     "direction": "90度侧光",     "directionality": "高度定向",     "quality": "主体上是柔和光线，建筑上是硬朗的几何光线",     "intensity": "具有情绪感的/高调建筑高光与低调主体阴影",     "contrast_ratio": "高对比度（戏剧性阴影）",     "mood": "戏剧性/神秘/精致",     "shadows": {       "type": "结构元素上边缘清晰锐利，主体脸部上边缘柔和渐变",       "density": "深黑",       "placement": "投射在地面、走廊内部以及主体右侧",       "length": "很长——在走廊地面上形成水平延伸的阴影投影"     },     "highlights": {       "treatment": "保留高光",       "placement": "柱子朝左的平面、开口附近的地面，以及主体的左脸颊和鼻子上"     },     "ambient_fill": "无",     "light_temperature": "中性"   },   "technical_specs": {     "medium": "数码摄影",     "style": "写实/社论",     "texture": "平滑到略带颗粒感",     "sharpness": "主体极致清晰，深背景具有自然的镜头衰减",     "grain": "胶片颗粒——中等程度",     "depth_of_field": "景深较深——主体通过对比被突出，但背景建筑在画面深处仍保留可辨识的结构",     "perspective": "正面平视，具有强烈的一点消失透视"   },   "artistic_elements": {     "genre": "肖像/社论",     "influences": [       "电影黑色摄影",       "经典街头与时尚摄影",       "粗野主义建筑摄影"     ],     "mood": "精致/戏剧性/沉思",     "atmosphere": "一个安静、孤立且高度结构化的城市瞬间，带有电影感和些许神秘气息。",     "visual_style": "结构化/几何化/干净"   },   "typography": {     "present": false,     "fonts": [],     "placement": "",     "integration": ""   },   "subject_analysis": {     "primary_subject": "一名年轻白人男性，穿着深色高领毛衣、长款深色皮质或厚棉质风衣、深色长裤和深色切尔西靴。",     "positioning": "位于右侧三分之一处，锚定前景",     "scale": "全身/环境式",     "interaction": "与环境互动——倚靠建筑",     "facial_expression": {       "mouth"...