curl -u "0xxxxxxxxxxx":"vxxxxxxxxxxxxxx"
 -X POST
 -F "positive_examples=@bottle-positive.zip"
 -F "negative_examples=@bottle-negative.zip"
 -F "name=plasticbottle"
 -k "https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classifiers?version=2015-12-02"

{"classifier_ids": ["ClassifierName"]}

curl -u "username":"pwd"
-X POST
-F "images_file=@imagefilename.jpg"
-F "classifier_ids={"classifier_ids":["ClassifierName"]}"
"https://gateway.watsonplatform.net/visual-recognition-beta/api/v2/classify?version=2015-12-02"

curl -X POST
-F "apple_positive_examples=@apples1.zip"
-F "banana_positive_examples=@yellow.zip"
-F "orange_positive_example=@pos_ex.zip"
-F "negative_examples=@vegetables.zip"
-F "name=fruit"
"https://gateway-a.watsonplatform.net/visual-recognition/api/v3/classifiers?api_key={api-key}&version=2016-05-20"

curl -X POST
 -F "bottle_positive_examples=@bottle-positive.zip"
 -F "negative_examples=@bottle-negative.zip"
 -F "name=plasticbottle"
 "https://gateway-a.watsonplatform.net/visual-recognition/api/v3/classifiers?api_key={api-key}&version=2016-05-20"