There are many great online learning resources available to learn about Azure for computer vision. Microsoft owns and maintains Azure and offers a free learning path for Azure. Platform learning is available as well, and it can be quite affordable. Cloud Academy offers this course: Designing Solutions Using Azure Cognitive Solutions. Udacity collaborated with Microsoft to create a nanodegree program and scholarship for students learning about Azure and machine learning. Udemy offers a course called Azure Machine Learning using Cognitive Services.