Why is the task of text recognition related to the field of artificial intelligence?

Since the letters in the image of the text can look different, different sizes, fonts, etc.
The program needs to find on the image where each letter is located, and determine what kind of letter it is.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.