You would need an OCR application that is able to detect mathematical formulas and return them in some format. That format must be then converted to LaTeX.
I don't know of one but see the SO thread
OCR lib for math formulas - Stack Overflow[
^] from 2015.
The above mentions
Im2Latex. Searching for that keyword you will find some projects at GitHub.
As a last resort you can still embed the image file in LaTeX using the
graphicx package.