higress/plugins/wasm-go/extensions/ai-image-reader

title, keywords, description

title	keywords	description
AI IMAGE READER	AI GATEWAY AI IMAGE READER	AI IMAGE READER Plugin Configuration Reference

Function Description

By integrating with OCR services to implement AI-IMAGE-READER, currently, it supports Alibaba Cloud's qwen-vl-ocr model under Dashscope for OCR services, and the process is shown in the figure below:

Running Attributes

Plugin execution phase：Default Phase Plugin execution priority：400

Configuration Description

Name	Data Type	Requirement	Default Value	Description
apiKey	string	Required	-	Token for authenticating access to OCR services.
type	string	Required	-	Provider type of the backend OCR service type(e.g. dashscope).
serviceHost	string	Required	-	Host of the backend OCR service.
serviceName	string	Required	-	Name of the backend OCR service.
servicePort	int	Required	-	Port of the backend OCR service.
model	string	Required	-	Model name of the backend OCR service (e.g., qwen-vl-ocr).
timeout	int	Required	10000	API call timeout duration (milliseconds).

Example

"apiKey": "YOUR_API_KEY",
"type": "dashscope",
"model": "qwen-vl-ocr",
"timeout": 10000,
"serviceHost": "dashscope.aliyuncs.com",
"serviceName": "dashscope",
"servicePort": "443"

Request to follow the OpenAI API protocol specifications:

Pass images via URL:

messages=[{
    "role": "user",
    "content": [
        {"type": "text", "text": "What's in this image?"},
        {
            "type": "image_url",
            "image_url": {
                "url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20241108/ctdzex/biaozhun.jpg",
            },
        },
    ],
}],

Pass images via Base64:

messages=[
    {
        "role": "user",
        "content": [
            { "type": "text", "text": "what's in this image?" },
            {
                "type": "image_url",
                "image_url": {
                    "url": f"data:image/jpeg;base64,{base64_image}",
                },
            },
        ],
    }
],

The following is an example of using ai-image-reader for enhancement. The original request was:

What is the content of the image?

The result returned by the LLM without processing from the ai-image-reader plugin is:

Sorry, as a text-based AI assistant, I cannot view image content. You can describe the content of the image, and I will do my best to help you identify it.

The result returned by the LLM after processing by the ai-image-reader plugin is:

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