ibm-cloud - 视觉识别错误 400 : Cannot execute learning task no classifier name given

Question

我正在使用视觉识别curl命令向图像添加分类:

curl -u "user":"password"  \
-X POST \
-F "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="92fbfff3f5f7e1cdf4fbfef7afd2fbfff3f5f7a2bcf8e2f5" rel="noreferrer noopener nofollow">[email protected]</a>" \
-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"
    }
  ]
}        

(也尝试过不使用分类器数组。得到相同的错误)并收到错误:{“code”:400，“error”:“无法执行学习任务:未给出分类器名称”}

json有问题吗？

Answer 1

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:

{"classifier_ids": ["Black"]}

---

在 CURL 中使用 Black 作为分类器 ID 的示例:

curl -u "user":"password"  \
-X POST \
-F "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="84ede9e5e3e1f7dbe2ede8e1b9c4ede9e5e3e1b4aaeef4e3" rel="noreferrer noopener nofollow">[email protected]</a>" \
-F "classifier_ids={\"classifier_ids\":[\"Black\"]}"
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classify?version=2015-12-02"

如果您想在 JSON 文件中列出分类器 ID，则:

curl -u "user":"password"  \
-X POST \
-F "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d6bfbbb7b1b3a589b0bfbab3eb96bfbbb7b1b3e6f8bca6b1" rel="noreferrer noopener nofollow">[email protected]</a>" \
-F "classifier_ids=@classifier_ids.json"
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classify?version=2015-12-02"

其中classifier_ids.json具有:

{
 "classifier_ids": ["Black"]
}

您可以在 API Explorer 中测试视觉识别 API .
了解有关该服务的更多信息 documentation .