build a java class who use ocr

i want a java class with static method how take for argument a file ( image ) and return a list of immatriculation plates of all cars available in the image each element of the list must contain : the string like ( 111TT1111 ) and the plate image cropped there is 4 types of matricules i will upload an image with all types and expected results you must use opencv and tesseract ocr the return type of the method must be a class class Matricule { String mat; File image; } input file may contain 0 or many vehicules