COMPARE AND CONTRAST A joint exhibit of photographs by Joan Fontcuberta and Bruno Rosier is on display at Aperture Gallery. For her series “Landscapes Without Memory,” Ms. Fontcuberta used software originally created for military use. She fed the program fragments of images by Cezanne, Dali, Stieglitz, and other artists, forcing the computer to intepret the images as real. The program then provided complex three-dimensional scenes of oceanscapes, mountains, and skies. Above left is Caspar David Friedrich’s painting “Wanderer Among the Sea of Fog” (1818) and above right is the work it inspired, “Orogenesis: Friedrich” (2002). Mr. Rosier’s series “Parallel Memories” began with his 1992 flea-market discovery of a box of 25 prints, dated from 1937 to 1953.They showed the same person posing alone in front of famous landmarks all over the world. Mr. Rosier then traced the man’s footsteps, re-creating the scenes with himself in front of Niagara Falls, the Brooklyn Bridge, the Acropolis, and other landmarks. Below is “Egypt, Giza”; the 1953 original is at left and Mr. Rosier’s 1997 interpretation is at right. Through Thursday, March 30, Tuesday-Saturday, 10 a.m.-6 p.m., Aperture Gallery, 547 W. 27th St., between Tenth and Eleventh avenues, fourth floor, 212-505-5555, free.

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