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wiki/concepts/Negative-Prompting.md
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title: "Negative Prompting"
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type: concept
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tags: [prompt-engineering, ai-image-generation, exclusion]
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last_updated: 2026-05-15
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---
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## Definition
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负向提示词(Negative Prompting)——通过明确指定不想要的内容元素,主动排除 AI 生成图像中的干扰元素和常见缺陷,提升生成结果的可控性和专业度。
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## Mechanism
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在支持负向提示词的 AI 平台(Midjourney、Stable Diffusion)中,用户通过专门的语法(`--no`、`negative_weights`、`NOT` 等)指定需要排除的元素。
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## Common Negative Prompt Categories
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- **图像缺陷**:blurry、noise、grain、artifact、distortion、overexposed、underexposed
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- **不想要的对象**:watermark、text、logo、signature、frame、border
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- **构图元素**:background clutter、distracting elements、unwanted objects
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- **质量相关**:low quality、jpeg artifacts、compression artifacts
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- **风格相关**:cartoonish(当需要写实风格时)、oversaturated、overprocessed
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## Best Practices
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- 针对性而非泛化:只排除确实不想要的特定元素,不过度使用
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- 与正向提示词协同:负向提示词补充而非替代正向提示词
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- 平台适配:各平台负向提示词语法和支持程度不同(Midjourney 的 `--no`、SD 的 negative embeddings)
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## Connections
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- [[Five-Layer-Prompt-Structure]] 的组成部分(在结构框架中标注负向提示词位置)
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- [[Midjourney]] / [[Stable-Diffusion]] 平台的核心功能
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- [[Prompt-Engineering]] 的关键技术之一
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## Aliases
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- Negative Prompt
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- Exclusion Prompt
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- NOT Prompt
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- 负向提示词
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