There are several ways to detect license plates and display them as text. One approach is to use computer vision and image processing techniques to identify and extract the license plate from an image or video. This can be done using techniques such as edge detection, image segmentation, and pattern recognition.
Once the license plate has been identified and extracted, it can be converted to text using optical character recognition (OCR) software. OCR software is designed to recognize and extract text from images and convert it into a digital format that can be edited and searched.
There are also many commercial products available that are specifically designed for license plate recognition, which can be used to automatically detect and read license plates from images or video. These products often use a combination of computer vision and OCR techniques to identify and extract the license plate, and may also include additional features such as automatic lookup of vehicle registration information.
It's worth noting that license plate recognition can be a complex task, and the accuracy of the results may vary depending on the quality of the input image and the specific recognition software being used.