Richard Prince, who has pushed the legal limits of artistic appropriation for decades, will continue to fight for his art in court. This week, a federal judge in New York refused to throw out a photographer’s lawsuit against Mr. Prince over Mr. Prince’s use of an image in an exhibition. The case will continue, and could set a precedent for how the fair-use doctrine relates to Instagram, the photo-sharing app.

In 2014, Mr. Prince presented an installation called “New Portraits” at the Gagosian Gallery, in which he printed various Instagram photos on large canvases, and added his own Instagram-style comments below them. The show led to a backlash, including from the photographer Donald Graham, whose photo “Rastafarian Smoking a Joint” was featured via a print from another user’s Instagram account. Mr. Graham first filed a cease-and-desist order against Mr. Prince, and then a lawsuit in 2015.