TakeMeasure

Is it possible to measure lengths of things by using just a camera?

Yes, indeed from any angle! Thanks to the mathematics of projective geometry. TakeMeasure allows you to measure dimensions of any small or large objects that lie in the plane of a reference object. Highlight the reference - sheet of paper, card or a banknote and leave the algorithm to do the rest.

https://www.youtube.com/watch?v=uEMn_Ao_Fmg

We made all functionality fully available for free. Expressing your satisfaction by £1 donation through TakeMeasure Donate will reward our work and support further developments.