New Software Sifts Photos for the Most Clickable

Hundreds of millions of photos and videos flood the Internet each day, a potential gold mine for online businesses that can get people to click on them. But which pictures will draw the biggest crowd and generate the most revenue? How can publishers spot the next viral sensation amid a sea of dross?

Companies doing business on the Internet know that adding images to text fuels engagement. Adding a picture to a tweet, for example, makes it five times more likely that readers will click an embedded link, according to...