Tags: Playboy Playmate.
Lena Söderberg (born 31 March 1951 in Sweden) appeared as a Playmate in the November 1972 issue of Playboy magazine under the name Lenna Sjööblom. Her centerfold was photographed by Dwight Hooker.Her photo (known as Lenna) is often used to test algorithms in digital image processing. She was a guest at the 50th annual Conference of the Society for Imaging Science and Technology in 1997 where she gave a presentation about herself.