What does roi mean?

The full name of roi can be return on investment, which means "return on investment"; It can also be an area of interest, which means "area of interest". The return on investment refers to the return on investment. Return on investment (ROI) refers to the value that should be returned through investment, that is, the economic return that an enterprise gets from an investment activity. It covers the profit target of the enterprise. Profit is related to the property necessary to put into operation, because managers must make profits through investment and existing property. Investment can be divided into two categories: industrial investment and financial investment. People usually say that financial investment mainly refers to securities investment. The region of interest refers to the region of interest. In machine vision and image processing, the region to be processed is outlined in the form of box, circle, ellipse and irregular polygon from the processed image, which is called region of interest, ROI. Various operators and functions are commonly used in machine vision software such as Halcon, OpenCV and Matlab. To get the ROI of the region of interest, and then process the image in the next step.