Difference between Gravure and Photogravure

What is the difference between Gravure and Photogravure?

Gravure as a noun is a type of intaglio printing process, in which an image is engraved onto a rotating copper cylinder. while Photogravure as a noun is an intaglio process for printing photographic reproductions in newspapers and books

We hope you now know whether to use Gravure or Photogravure in your sentence.