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Gigapixel image

From Wikipedia, the free encyclopedia

Gigapixel image of František Kupka's The Cathedral from the Google Art Project. The version shown here has been downsampled to 746.7 MP due to constraints in the JPEG format, but the image is available in original resolution as a tile set on the file description page.
Lucas Cranach l'Ancien, Portrait d'une noble dame saxonne (1534), musée des Beaux-Arts de Lyon. Watch this picture in gigapixel in the MBALYON website.
A gigapixel rendering of a 2D fractal (~2.15 gigapixels).

A gigapixel image is a digital image bitmap composed of one billion (109) pixels (picture elements), 1000 times the information captured by a 1 megapixel digital camera. A square image of 31,623 pixels in width and height is one gigapixel. Current technology for creating such very high-resolution images usually involves either making digital image mosaics of many high-resolution digital photographs or using a film negative as large as 12" × 9" (30 cm × 23 cm) up to 18" × 9" (46 cm × 23 cm), which is then scanned with a high-end large-format film scanner with at least 3000 dpi resolution. Only a few cameras are capable of creating a gigapixel image in a single sweep of a scene, such as the Pan-STARRS PS1 and the Gigapxl Camera.[1][2]

A gigamacro image is a gigapixel image which is a close-up or macro image.

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Transcription

Terapixel

A terapixel image is an image composed of one trillion (1012) pixels. Though currently rare, there have been a few instances such as the Microsoft Research Terapixel project for use on the Fulldome projection system,[3] a composite of medical images by Aperio,[4][5] and Google Earth's Landsat images viewable as a time-lapse are collectively considered over one terapixel.[6]

In 2015 the 'Terabite', the world's first terapixel macro image, was released by GIGAmacro.[7]

See also

References

  1. ^ "No. 24 - 2007: PS1 Camera Installed". Ifa.hawaii.edu. Retrieved 2013-02-25.
  2. ^ "Project Overview". Archived from the original on 2006-04-14. Retrieved 2010-11-12.
  3. ^ "Terapixel". Research.microsoft.com. Retrieved 2016-09-28.
  4. ^ "Spectrum WebScope: BigTIFF/BreastCancer225.tif". Archived from the original on 2014-02-28. Retrieved 2014-01-07.
  5. ^ "Aperio Implements BigTIFF, Donates Enhancements to Public Domain". Business Wire. 2007-05-03. Retrieved 2016-09-28.
  6. ^ Sean Gallagher (2013-06-10). "How Google built a 52-terapixel time-lapse portrait of Earth". Ars Technica. Retrieved 2016-09-28.
  7. ^ "World's First Terapixel Macro Image". GIGAmacro. Retrieved 2018-02-20.

External links

This page was last edited on 1 January 2024, at 03:56
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