Creating business with OpenCV apps involves developing and selling applications and systems that use the OpenCV library. OpenCV is a free, open-source computer vision and machine learning software library that provides a wide range of tools for image and video processing, object detection, and machine learning algorithms. There are several ways to create business with OpenCV apps, including:

1. Developing Custom Applications: Building custom applications for clients based on their specific requirements and needs. This could include object detection systems, image processing tools, and computer vision solutions, among others.
2. Selling Off-the-Shelf Solutions: Developing and selling pre-built, ready-to-use applications based on OpenCV, such as augmented reality applications or human-computer interaction systems.
3. Consulting and Training Services: Offering consulting services and training to help clients integrate OpenCV into their existing systems, or to help them develop new applications using the library.
4. Building and Selling Tools and Plugins: Developing tools and plugins based on OpenCV, and selling them to developers and businesses for use in their own applications.

OpenCV is widely used in various industries, including healthcare, automotive, entertainment, and security, among others, making it a potentially lucrative field for those looking to create business with OpenCV apps.