Analyze images using Dashscope (Qwen) Vision models for detailed description, OCR text extraction, object recognition, and visual Q&A. Use when the user needs to understand image content via Alibaba Cloud Dashscope API, especially for Chinese-language image analysis and documents.
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使用 Dashscope（通义千问） 视觉模型分析图片，支持详细描述、OCR文字提取、物体识别和图片问答。
图片理解技能是一个强大的视觉分析工具，通过调用 Dashscope（阿里云通义千问）的视觉大模型（qwen-vl-plus、qwen-vl-max），让 AI 能够理解和分析图像内容。
核心功能：
pip install requests
# 方式一：环境变量（推荐）
set DASHSCOPE_API_KEY=sk-your-api-key-here
# 方式二：运行时传入（见下方）
python scripts/image_understanding.py -i 图片路径 [选项]
| 参数 | 说明 |
|---|---|
-i, --image | 必填 图片路径或URL |
-m, --model | 模型选择：qwen-vl-plus(默认) 或 qwen-vl-max |
-p, --custom-prompt | 自定义分析提示词 |
-e, --extract-text | 提取文字(OCR) |
-o, --identify-objects | 识别物体 |
--compact | 输出紧凑JSON |
# 1. 基本描述（默认）
python scripts/image_understanding.py -i photo.jpg
# 2. 提取文字
python scripts/image_understanding.py -i screenshot.png -e
# 3. 识别物体
python scripts/image_understanding.py -i photo.jpg -o
# 4. 自定义问答
python scripts/image_understanding.py -i photo.jpg -p "这个产品多少钱？"
# 5. 使用更强的模型
python scripts/image_understanding.py -i photo.jpg -m qwen-vl-max
# 6. 网络图片
python scripts/image_understanding.py -i "https://example.com/image.png" -e
# 7. 设置API Key后运行
set DASHSCOPE_API_KEY=sk-xxx
python scripts/image_understanding.py -i photo.jpg
| 配置项 | 值 |
|---|---|
| 服务商 | Dashscope (通义千问) |
| 默认模型 | qwen-vl-plus |
| 高级模型 | qwen-vl-max |
| API Base | https://dashscope.aliyuncs.com/compatible-mode/v1 |
| 环境变量 | DASHSCOPE_API_KEY |
| 问题 | 解决方案 |
|---|---|
| API Key 错误 | 检查 DASHSCOPE_API_KEY 是否正确 |
| 图片格式不支持 | 使用 PNG/JPG/GIF/WEBP/BMP 格式 |
| 网络超时 | 检查网络连接，尝试使用代理 |
| 识别不准确 | 提高图片质量，添加更详细的提示词 |
运行 python scripts/image_understanding.py --help 查看完整帮助
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