---
title: "Nano Banana"
type: concept
tags: [ai, prompt, google, image-generation]
---

## Definition
Nano Banana 是 Google 发布的结构化图像生成提示词框架，通过 9 个标准化字段将创意描述转化为机器可执行参数，实现提示词的可复用性和可组合性。

## Framework Fields
| 字段 | 作用 | 示例 |
|------|------|------|
| shot | 镜头类型和构图 | Macro close-up shot, square aspect ratio |
| subject | 主体描述（物件/人物） | A luxury men's chronograph watch |
| environment | 环境背景 | Dark textured slate rock, out-of-focus gradient |
| lighting | 照明设置 | Studio softbox, key light from top-left |
| camera | 摄像机参数 | 100mm macro lens, f/8, 45-degree angle |
| color_grade | 调色风格 | High contrast, clean and commercial |
| style | 整体风格 | Hyper-realistic CGI render |
| quality | 质量要求 | 8K resolution, perfect material shaders |
| negatives | 负向提示词 | no scratches, no dust, no logos |

## Why "Negatives" Matters
negatives 字段是质量控制的关键：明确告诉模型"不要什么"，避免常见生成缺陷（模糊、水印、logo 等）。

## Connections
- [[结构化提示词]] ← 框架类型
- [[负向提示词]] ← 关键机制
- [[Google]] ← 发布方