Using your Trial API key, you can train images within your private dataset for testing purposes. There are two ways to train the computer vision system:

(1) Train Now
We’ve created the Training webpage so you can quickly try image training through an easy-to-use interface. Use it to train our computer vision with your own database of images and labels.
Link: http://developer.iqengines.com/dashboard/upload/  

(2) Training API 
For automated training, use the Training API. The Training API allows you to upload images to the IQ Engines object search database through a RESTful interface. Once the computer vision system has successfully indexed your image, you will be able to search for it using the query api.  The Training API can scale to several millions of objects.
Link: http://www.iqengines.com/apidocs/apis/training-api.html

Before using the Training, make sure your images are in the range 300-600px in size, and you have the desired label name you want returned when there is a visual match.