The content fill tool can replace a complicated background when objects are erased. This example shows the removal of a U-shaped white hair.

t looks as if Photoshop, already famous for its ability to make people look thinner and skies look bluer, could take digital erasure of unsightly objects to an entirely new level.

A feature called "content-aware fill" described in an Adobe video published Tuesday shows the technology used to remove buffalo, telephone wires, and a tree from various image...