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Image of Lena Forsén used in many image processing experiments. (Click on the image to access the actual 512×512px standard test version.) Lenna (or Lena) is a standard test image used in the field of digital image processing, starting in 1973. [1]
The images are in many cases chosen to represent natural or typical images that a class of processing techniques would need to deal with. Other test images are chosen because they present a range of challenges to image reconstruction algorithms, such as the reproduction of fine detail and textures, sharp transitions and edges, and uniform regions.
The following other wikis use this file: Usage on af.wikipedia.org Steam (Diens) Usage on arz.wikipedia.org ستيم; Usage on az.wikibooks.org Sosial şəbəkələr/Steam
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Do not copy this file to Wikimedia Commons. This image is believed to be non-free or possibly non-free in its home country, Spain. In order for Commons to host a file, it must be free in its home country and in the United States.
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The Apple Icon Image format (.icns) is an icon format used in Apple Inc.'s macOS.It supports icons of 16 × 16, 32 × 32, 48 × 48, 128 × 128, 256 × 256, 512 × 512 points at 1x and 2x scale, with both 1-and 8-bit alpha channels and multiple image states (example: open and closed folders).