Hello there,
Managed to make this work for me.
After training the OOB image classifier from AI Center and making it public, I called the engine from Postman using the base64 image as payload.
I simply converted the image using this online tool and added it in Postman like this:
Content-Type header is set to “application/json”.
Make sure to add the encoded string, not the image source (the one with data:image/img extension;base64) as the API call responds with “Prediction Failed” otherwise.