AI图像生成指南 - DALL-E 3/Flux + 提示词技巧 + ComfyUI集成

README.md

@@ -1,3 +1,298 @@
----
-license: mit
----
+---
+license: mit
+tags:
+  - tutorial
+  - crazyrouter
+  - dall-e
+  - flux
+  - image-generation
+  - ai-art
+  - stable-diffusion
+  - midjourney
+  - llm
+language:
+  - en
+  - zh
+---
+
+# 🎨 Crazyrouter AI 图像生成指南
+
+> 通过 Crazyrouter API 调用 DALL-E 3、Flux 等图像生成模型
+
+[Crazyrouter](https://crazyrouter.com) 不仅支持文本模型，还支持图像生成模型。一个 API Key 即可调用多种 AI 绘画模型。
+
+---
+
+## 支持的图像模型
+
+| 模型 | 提供商 | 特点 |
+|------|--------|------|
+| `dall-e-3` | OpenAI | 高质量、理解复杂提示词 |
+| `dall-e-2` | OpenAI | 快速、便宜 |
+| `flux-schnell` | Black Forest Labs | 开源、速度快 |
+| `flux-dev` | Black Forest Labs | 高质量开源模型 |
+
+---
+
+## 快速开始
+
+### Python
+
+```python
+from openai import OpenAI
+
+client = OpenAI(
+    base_url="https://crazyrouter.com/v1",
+    api_key="sk-your-crazyrouter-key"
+)
+
+response = client.images.generate(
+    model="dall-e-3",
+    prompt="A cute robot serving coffee in a futuristic cafe, digital art style",
+    size="1024x1024",
+    quality="standard",
+    n=1,
+)
+
+image_url = response.data[0].url
+print(f"Image URL: {image_url}")
+```
+
+### cURL
+
+```bash
+curl https://crazyrouter.com/v1/images/generations \
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer sk-your-crazyrouter-key" \
+  -d '{
+    "model": "dall-e-3",
+    "prompt": "A serene Japanese garden with cherry blossoms, watercolor painting",
+    "size": "1024x1024",
+    "n": 1
+  }'
+```
+
+### Node.js
+
+```javascript
+import OpenAI from "openai";
+
+const client = new OpenAI({
+  baseURL: "https://crazyrouter.com/v1",
+  apiKey: "sk-your-crazyrouter-key",
+});
+
+const response = await client.images.generate({
+  model: "dall-e-3",
+  prompt: "A cyberpunk cityscape at night with neon lights, 4K detailed",
+  size: "1024x1024",
+  n: 1,
+});
+
+console.log(response.data[0].url);
+```
+
+---
+
+## DALL-E 3 详细用法
+
+### 尺寸选项
+
+| 尺寸 | 用途 |
+|------|------|
+| `1024x1024` | 正方形（默认） |
+| `1024x1792` | 竖版（手机壁纸、海报） |
+| `1792x1024` | 横版（桌面壁纸、Banner） |
+
+### 质量选项
+
+| 质量 | 说明 |
+|------|------|
+| `standard` | 标准质量（默认，更快） |
+| `hd` | 高清质量（更细腻，更慢） |
+
+### 风格选项
+
+| 风格 | 说明 |
+|------|------|
+| `vivid` | 鲜艳风格（默认） |
+| `natural` | 自然风格 |
+
+### 完整示例
+
+```python
+response = client.images.generate(
+    model="dall-e-3",
+    prompt="A majestic dragon flying over a medieval castle at sunset",
+    size="1792x1024",    # 横版
+    quality="hd",         # 高清
+    style="vivid",        # 鲜艳
+    n=1,
+)
+```
+
+---
+
+## 批量生成
+
+```python
+prompts = [
+    "A minimalist logo for a tech startup, blue and white",
+    "A cozy reading nook with warm lighting, illustration style",
+    "An astronaut playing guitar on the moon, digital art",
+    "A steampunk mechanical butterfly, detailed 3D render",
+]
+
+for i, prompt in enumerate(prompts):
+    response = client.images.generate(
+        model="dall-e-3",
+        prompt=prompt,
+        size="1024x1024",
+        n=1,
+    )
+    print(f"Image {i+1}: {response.data[0].url}")
+```
+
+---
+
+## 下载图片
+
+```python
+import requests
+
+response = client.images.generate(
+    model="dall-e-3",
+    prompt="A beautiful sunset over the ocean",
+    size="1024x1024",
+    n=1,
+)
+
+image_url = response.data[0].url
+
+# 下载保存
+img_data = requests.get(image_url).content
+with open("sunset.png", "wb") as f:
+    f.write(img_data)
+print("Image saved as sunset.png")
+```
+
+---
+
+## 在客户端中使用
+
+### Cherry Studio
+
+Cherry Studio 内置 AI 绘画功能，配置 Crazyrouter 后可以直接在客户端中生成图片。
+
+### ChatBox
+
+ChatBox 支持图片生成，在对话中输入绘画提示词即可。
+
+### NextChat / LobeChat
+
+这些客户端支持 DALL-E 插件，配置 Crazyrouter API 后可以在对话中生成图片。
+
+---
+
+## 提示词技巧
+
+### 基础结构
+
+```
+[主体] + [风格] + [细节] + [氛围]
+```
+
+### 示例
+
+| 提示词 | 效果 |
+|--------|------|
+| `A cat wearing a space suit, digital art, highly detailed` | 太空猫，数字艺术风格 |
+| `Minimalist mountain landscape, Japanese ink wash painting` | 极简山水，水墨画风格 |
+| `Product photo of a sleek smartphone, studio lighting, white background` | 产品摄影风格 |
+| `Isometric view of a tiny coffee shop, pixel art, warm colors` | 等距像素风咖啡店 |
+
+### 风格关键词
+
+- **写实**: `photorealistic, 8K, detailed, professional photography`
+- **插画**: `illustration, digital art, concept art, artstation`
+- **水彩**: `watercolor painting, soft colors, artistic`
+- **像素**: `pixel art, retro, 16-bit, game style`
+- **3D**: `3D render, octane render, blender, cinema 4D`
+- **动漫**: `anime style, manga, studio ghibli`
+- **极简**: `minimalist, clean, simple, flat design`
+
+---
+
+## 与文本模型结合
+
+让 AI 先生成提示词，再用来绘画：
+
+```python
+# Step 1: 用文本模型生成优化的提示词
+chat_response = client.chat.completions.create(
+    model="gpt-4o-mini",
+    messages=[{
+        "role": "user",
+        "content": "Generate a detailed DALL-E prompt for: a cozy winter cabin. Include style, lighting, and mood details. Output only the prompt."
+    }]
+)
+optimized_prompt = chat_response.choices[0].message.content
+
+# Step 2: 用优化后的提示词生成图片
+image_response = client.images.generate(
+    model="dall-e-3",
+    prompt=optimized_prompt,
+    size="1792x1024",
+    quality="hd",
+    n=1,
+)
+print(f"Prompt: {optimized_prompt}")
+print(f"Image: {image_response.data[0].url}")
+```
+
+---
+
+## ComfyUI 集成
+
+如果你使用 ComfyUI 进行更高级的图像生成工作流，可以通过 Crazyrouter API 获取文本提示词优化：
+
+```python
+# 用 Crazyrouter 的文本模型优化 ComfyUI 的提示词
+response = client.chat.completions.create(
+    model="gpt-4o-mini",
+    messages=[{
+        "role": "system",
+        "content": "You are a Stable Diffusion prompt expert. Convert user descriptions into optimized SD prompts with positive and negative prompts."
+    }, {
+        "role": "user",
+        "content": "A beautiful girl in a flower garden"
+    }]
+)
+print(response.choices[0].message.content)
+# Output: positive prompt + negative prompt for ComfyUI/SD
+```
+
+---
+
+## 价格参考
+
+| 模型 | 尺寸 | 质量 | 价格/张 |
+|------|------|------|---------|
+| DALL-E 3 | 1024x1024 | standard | ~$0.04 |
+| DALL-E 3 | 1024x1024 | hd | ~$0.08 |
+| DALL-E 3 | 1792x1024 | standard | ~$0.08 |
+| DALL-E 3 | 1792x1024 | hd | ~$0.12 |
+| DALL-E 2 | 1024x1024 | - | ~$0.02 |
+
+*通过 Crazyrouter 调用，价格可能更优惠。*
+
+---
+
+## 链接
+
+- 🌐 [Crazyrouter](https://crazyrouter.com) — 获取 API Key
+- 🤖 [在线 Demo](https://huggingface.co/spaces/xujfcn/Crazyrouter-Demo)
+- 📖 [快速入门](https://huggingface.co/xujfcn/Crazyrouter-Getting-Started)
+- 💻 [编程工具配置](https://huggingface.co/xujfcn/Crazyrouter-AI-Coding-Tools)
+- 💬 [Telegram 社区](https://t.me/crazyrouter)
+- 🐦 [Twitter @metaviiii](https://twitter.com/metaviiii)