Photoshop :: Text In Most Contrasting Colours To The Backgroung Picture

I need to make a text above picture readable in the east way. Making text colour a single color is not successful always; even tough I select the most contrasting colour to the general picture colour.

I am not professional in pictures, colouring etc. But, I think there should be a colour contrast concept. A simple example is that white is the most contrasting colour to the black or vice versa.

Can I use Photoshop so that it will change the colour of the pixels of the text to the most contrasting pixels colours of the background picture? I think in that case the text may be read in the easiest way.