What to see in L.A. galleries: street-art ethos, a mesmerizing digital canvas, wild tapestries

Sometimes artists make the best curators. And sometimes galleries organize better exhibitions than museums. Both happen with "Roll Call: 11 Artists From Los Angeles" at L.A. Louver. Organized by Gajin Fujita, the exhibition reprises "Art in the Streets," an overblown extravaganza that the Museum...