Removing the Grout Lines from a Texture material

[DCB123]

I would like to know, how to get  this Travertine JPG, to show without the groutlines?

Pls, provide me with the methods, or the way to go into say, Photoshop, and remove all of these grout lines pls?

[Kbird1]

This is an easy way to make Materials from screen grab off the Internet, no special software needed........

 

You will need a different image that the one above though , since it is angled and the grout line can't be cropped out.