视觉识别错误400:无法执行学习任务，未提供分类器名称 [英] Visual Recognition error 400: Cannot execute learning task no classifier name given

问题描述

我正在使用视觉识别curl命令向图像添加分类:

I am using Visual Recognition curl command to add a classification to an image:

curl -u "user":"password"  \
-X POST \
-F "images_file=@image0.jpg" \
-F "classifier_ids=classifierlist.json" \
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classifiers?version=2015-12-02"

json文件:

{
  "classifiers": [
    { 
        "name": "tomato",
        "classifier_id": "tomato_1",
        "created": "2016-03-23T17:43:11+00:00",
        "owner": "xyz"
    }
  ]
}        

(也尝试不使用分类器数组.出现相同的错误) 并得到一个错误: {代码":400，错误":无法执行学习任务:未指定分类器名称"}

(Also tried without the classifiers array. Got the same error) and getting an error: {"code":400,"error":"Cannot execute learning task : no classifier name given"}

json出问题了吗?

Is something wrong with the json?

推荐答案

要指定要使用的分类器，您需要发送类似于以下内容的JSON对象:

To specify the classifiers you want to use you need to send a JSON object similar to:

{"classifier_ids": ["Black"]}

---

在CURL中使用Black作为分类ID的示例:

---

An example using Black as classifier id in CURL:

curl -u "user":"password"  \
-X POST \
-F "images_file=@image0.jpg" \
-F "classifier_ids={\"classifier_ids\":[\"Black\"]}"
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classify?version=2015-12-02"

如果要在JSON文件中列出分类ID，则:

If you want to list the classifier ids in a JSON file then:

curl -u "user":"password"  \
-X POST \
-F "images_file=@image0.jpg" \
-F "classifier_ids=@classifier_ids.json"
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classify?version=2015-12-02"

classifier_ids.json具有的位置:

{
 "classifier_ids": ["Black"]
}

您可以在 API资源管理器.
在文档中了解有关该服务的更多信息.

You can test the Visual Recognition API in the API Explorer.
Learn more about the service in the documentation.

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