Opening this week at the High Museum in Atlanta is “Underexposed,” an expansive exhibition that highlights female photographers from the past century. Arranged roughly in chronological order, the show, which was curated by Sarah Kennel, features over 100 works and illustrates the ways women have advanced the discipline — in fashion and documentary photography, advertising and journalism, and experimentations with the technological aspects of the medium itself, including Anna Atkins’s mid-19th-century cyanotypes as well as Meghann Riepenhoff’s more modern iterations of the same sun-printing technique.