How did iQOO9 know the map?

IQOO9 how to read the picture is as follows:

IQOO mobile phone recognizes characters by saving pictures or clicking and holding on the web page.

After recognition, the assistant interface will pop up on the right. Select the extracted text, and then select the area where you want the text. After recognition, click full-text mode or word segmentation mode, select the text you want to copy or edit, and get the desired text information.