Image processing size of image

How can i Count area every room at floor plan picture of home and detect the name of home from text in the picture?

[KSSV]

Attaching an example image will be good.

[Dhana Rizky]

Like this

[Dhana Rizky]

This is the image

[Walter Roberson]

The examples did not get attached :(

[Walter Roberson]

replaced with later https://www.mathworks.com/matlabcentral/answers/889047-image-processing-size-of-image?s_tid=srchtitle