Lenna
See also: Lenna (homonymy)
not to confuse with the river Lena.
Lenna (or more precisely Lena ) is a piece of photograph of a Playmate taken in the November issue of (miss November) 1972 of the magazine Playboy . It is used as image of test for the algorithms of Image processing and became de facto an industrial and scientific standard.
Description
The name “Lenna” is the name given in the original article of Playboy , the first name of Lena Soderberg having been changed by the magazine so that the name is correctly pronounced by Anglo-Saxons.
The image is so famous that Lena Soderberg (born Sjööblom), a Swedish , was invited of honor of the 50e annual conference of the Society for Imaging Science in Technology, in 1997
The use of this image knew some controversies because of the nudity of the image of origin, and especially Playboy once tried to continue uses the not - authorized image. The magazine since gave up the continuations and accepted the use of “Lenna” for advertizing reasons. According to Wired stores, “even if Playboy is known for its measurements on the illegal use of its images, it decided to pass on the generalized use of this central poster in particular. ”
David C. Munson, editor as a chief during the discussions of the IEEE on the image processing of January 1996, quotes two reasons to explain the popularity of this image in the world of research: First of all, this image contains an interesting mixture of details, uniform areas, and textures, which makes it possible to test well the various algorithms of image processing. It is an good image of test! Then, “Lenna” is the image of an attracting woman. It is not a surprise which the community of research in the image processing (mainly male) revolves around an image that they find attirante.
Coincidence makes that Playboy declared that this number was its best sale: 7.161.561 specimens.
History
The history of the image was described in the mailing list of the IEEE Professional Communication Society of May 2001, in an article of Jamie Hutchinson:
Alexander Sawchuk estimates that it is in June or in July 1973 that, whereas he was professor attending of electronic engineering the Institute of treatment of the signal and the images of the the University of California of the South, with a student and the chief of the laboratory, they, were pressed, seeking in the laboratory an good image with scanner for an article of conference of a colleague. They wearied their usual images of test, tedious tricks which dated from research of the years 1960 on the televisual standards. He wanted something of foil to ensure a good contrast, and they wanted an human face. At this time, somebody arrived with the last Playboy .
The engineers tore off one the higher third of the central poster to be able to wrap it around the drum of their scanner Muirhead, had a fixed resolution of 100 lines per inch and the engineers wanted an image of 512 X 512, therefore it limited the image to the 5,12 inches top, cutting blow the hair of the sujet.
References
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