{ "metadata": { "image_type": "摄影作品", "primary_purpose": "编辑类配图" }, "composition": { "rule_applied": "三分法构图", "aspect_ratio": "1:1", "layout": "多层次构图", "focal_points": [ "身穿深色大衣的男子站在画面右侧", "雾气中漂浮的灯火通明的游轮" ] } }