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Image to Prompt Generator That Actually Works

Turn any image into a structured, reusable AI prompt with image to prompt. Recreate styles or apply them across new visuals in seconds with PromptLab.

Free TrialNo learning curveSpeed 8-15s

将图片拖拽到这里

支持 JPG、JPEG、PNG、WEBP,最大 5MB

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占位结果区域,后续步骤会接入最终内容。

案例画廊

示例画廊

当前为占位示例,后续可统一替换视觉与文案。

霓虹满月赛博都市 原图原图
霓虹满月赛博都市 生成图Generated by Nano Banana

Futuristic cityscape with skyscrapers in an urban setting, elevated view with neon signs and towering buildings under a full moon, cyberpunk digital art style, symmetrical composition with a central vanishing point and a skyline dominated by tall structures, ambient neon lighting with high contrast and moonlight illumination, cool blue and purple tones accented by neon pink and cyan, wide-angle perspective from an elevated viewpoint, photorealistic with digital art details, futuristic and vibrant atmosphere with a sense of technological advancement

晨曦云海幻境 原图原图
晨曦云海幻境 生成图Generated by Nano Banana

A surreal landscape at sunrise, with a river of pink light winding through a sea of soft clouds. Towering cliffs frame the scene, their dark silhouettes contrasting against the ethereal glow. Floating in the sky are large, transparent bubbles, each encapsulating miniature scenes of illuminated trees and magical landscapes. The color palette is a dreamy blend of pastel pinks, purples, and blues, casting a serene and otherworldly atmosphere. The composition leads the eye from the vibrant horizon to the intricate details within the bubbles, creating a sense of depth and wonder.

复古红幕优雅肖像 原图原图
复古红幕优雅肖像 生成图Generated by Nano Banana

A glamorous portrait of a woman with classic beauty, featuring striking dark wavy hair styled in a vintage 1940s bob, and vivid red lipstick. She wears a sleek black satin dress with thin straps, set against a deep red backdrop. The lighting is dramatic and cinematic, highlighting her face with a golden spotlight from the upper left, creating sharp contrasts and soft shadows. The ambient light softly fades into the rich background, casting a warm, inviting glow that accentuates the mood of elegance and sophistication.

粉伞无边泳池海景 原图原图
粉伞无边泳池海景 生成图Generated by Nano Banana

A sunlit terrace with a luxurious beige lounge chair is shaded by a vibrant pink umbrella, positioned beside an infinity pool that seamlessly merges with the serene ocean in the background. The clear blue sky is dotted with soft clouds, reflecting a bright and airy ambiance. The scene is bathed in warm sunlight, casting crisp shadows on the sleek tile floor, evoking a tranquil and opulent seaside retreat. The pink and blue hues create a soft, inviting color palette, reinforcing the peaceful, leisurely mood of a perfectly idyllic summer day.

流程

How it works

典型生成速度:3-5 秒

Step 1

上传图片或粘贴 URL

输入阶段的占位说明。

Step 2

生成 Prompt

生成阶段的占位说明。

Step 3

复制并复用

复制与复用阶段的占位说明。

Step 1

上传图片或粘贴 URL

输入阶段的占位说明。

Step 2

生成 Prompt

生成阶段的占位说明。

Step 3

复制并复用

复制与复用阶段的占位说明。

模型

支持模型

兼容主流文生图模型。

Flux
Nano Banana
GPT-4o
Stable Diffusion
Midjourney
对比

图片描述 vs Prompt

理解 image description 与 image to prompt 的区别,能帮助你更好地控制图像生成。前者解释你看到了什么,后者定义如何复现。

图片描述与 Prompt 对比图

什么是图片描述(Image Description)?

Image Description
  • 定义:用自然语言解释图片中可见内容,包括对象、场景和基础语境。

  • 获取方式:可由视觉模型自动生成,也可以人工手动描述。

  • 特点:更偏向人类阅读,表达简单,重点是“内容是什么”。

  • 用途:用于理解图片、写标题文案、无障碍描述或视觉内容分析。

  • 示例:"一名女性坐在咖啡馆里,窗边洒入温暖阳光。"

什么是图片提示词(Image Prompt)?

Image Prompt
  • 定义:用于指导图像生成模型复现或扩展画面的结构化指令。

  • 获取方式:通常由 image to prompt 工具提取主体、风格、光线、构图等信息生成。

  • 特点:结构化、面向模型、强调可控生成与复现一致性。

  • 用途:复现风格、生成新图、在多次产出中保持视觉统一。

  • 示例:"电影感咖啡馆场景,暖色光线,浅景深,柔和阴影,85mm 镜头"

学习模块

生图提示词的核心要素

这一节用于学习高质量生图提示词的组成方式。你可以从主体、环境、风格、构图、光线等维度理解提示词如何影响生成结果,并逐步形成可复用的写作方法。

定义画面主体与核心对象,明确模型到底要生成什么。

完整 Prompt 截图
标准

什么是好的提示词

好的 Prompt 应该清晰、结构化,并能跨模型复用。

主体清晰

主体与场景清晰。

风格一致

风格与构图一致。

光线可控

光线与色彩可控。

结构可复用

表达简洁可复用。

模型差异

不同模型的 Prompt 差异

主流生图模型对提示词写法和细节粒度的偏好并不一致。

擅长方向

Flux

风格与电影感表达

Nano Banana

快速创意生成

GPT-4o

指令理解与执行

Stable Diffusion

关键词精细控制

Midjourney

强视觉冲击与艺术感

建议长度

Flux

中等长度

Nano Banana

短到中等

GPT-4o

中到长

Stable Diffusion

短关键词块

Midjourney

短句 + 参数词

风格控制

Flux

自然语言即可

Nano Banana

简单风格短语

GPT-4o

风格 + 约束更有效

Stable Diffusion

风格词 + 反向词

Midjourney

风格词与参数组合

镜头语言

Flux

有帮助但非必须

Nano Banana

可选

GPT-4o

用于精准控制

Stable Diffusion

关键词写法有效

Midjourney

短句表达更稳定

负向提示

Flux

通常不强依赖

Nano Banana

支持有限

GPT-4o

可写成约束条件

Stable Diffusion

常见且有效

Midjourney

多用 --no 参数

对比维度FluxNano BananaGPT-4oStable DiffusionMidjourney
擅长方向风格与电影感表达快速创意生成指令理解与执行关键词精细控制强视觉冲击与艺术感
建议长度中等长度短到中等中到长短关键词块短句 + 参数词
风格控制自然语言即可简单风格短语风格 + 约束更有效风格词 + 反向词风格词与参数组合
镜头语言有帮助但非必须可选用于精准控制关键词写法有效短句表达更稳定
负向提示通常不强依赖支持有限可写成约束条件常见且有效多用 --no 参数
开始使用

准备开始生成 Prompt 了吗?

上传图片,几秒内获得结构化 Prompt。

FAQ

FAQ

还有其他问题?随时联系我们,我们会尽快回复。

1

占位 FAQ 问题 1?

占位 FAQ 回答 1。

2

占位 FAQ 问题 2?

占位 FAQ 回答 2。

3

占位 FAQ 问题 3?

占位 FAQ 回答 3。

4

占位 FAQ 问题 4?

占位 FAQ 回答 4。

5

占位 FAQ 问题 5?

占位 FAQ 回答 5。

6

What formats are supported?

You can upload images in JPG, JPEG, PNG, or WEBP format, or provide a valid image URL in the image to prompt generator. For best image to prompt results, use images with clear subjects and defined visual styles. Clear inputs improve image to prompt accuracy.

7

Can I upload any image for image to prompt?

Most images can be used, including photos, illustrations, and AI-generated images. However, images with strong visual structure, clear subjects, and distinct styles will produce more accurate and useful image to prompt outputs. That helps image to prompt stay reliable.

8

How accurate is image to prompt?

The generated image to prompt captures the key visual characteristics of the input image, but results may vary depending on image complexity and model behavior. It is designed to provide a strong image to prompt starting point that can be reused or adjusted rather than a perfect one-to-one reconstruction. In practice, image to prompt prioritizes usable structure over exact duplication.

9

Does image to prompt support batch generation?

Batch image to prompt generation is not supported in the current version. The tool focuses on generating high-quality image to prompt outputs for individual images, but batch processing may be introduced in future updates. Single-image focus keeps image to prompt quality high.

10

When should I use image to prompt instead of writing prompts manually?

Use image to prompt when you want to replicate a specific visual style, understand how an image is constructed, or generate consistent variations. It is especially useful when you cannot easily describe a style in words or want to save time compared to manual prompt writing.

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