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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 32,768 (215) pixels in width and height is one gigapixel. Current technology for creating such very high-resolution images usually involves either making mosaics of a large number of 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.
A gigamacro image is a gigapixel image which is a close-up or macro image.
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, a composite of medical images by Aperio, and Google Earth's Landsat images viewable as a time-lapse are collectively considered over one terapixel.
- Largest photographs in the world
- Powerwall - Computer technology for interactive gigapixel displays
- HD View - Microsoft's high resolution image viewer plug-in (Windows only - IE & Firefox)
- Gigapan - A Google/NASA/CMU spinout technology that includes a commercially available robotic imager, free stitcher, and web-based viewer
- Gigapxl Project
- Google Cultural Institute
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- "Aperio Implements BigTIFF, Donates Enhancements to Public Domain". Business Wire. 2007-05-03. Retrieved 2016-09-28.
- Sean Gallagher (2013-06-10). "How Google built a 52-terapixel time-lapse portrait of Earth". Ars Technica. Retrieved 2016-09-28.
- "World's First Terapixel Macro Image". GIGAmacro. Retrieved 2018-02-20.
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- EasyZoom - Website for quickly sharing gigapixel images without downloading
- Gigapixel.panoramas.com - Gigapixel Fan Engagement with tags at sporting events
- GigaLinc - Immersive interaction with gigapixel images
- Gigapixel News
- Toledo 15 Gigapixels
- Technique for creating and viewing gigapixel macro images
- Gigapixel camera developed at Duke University
- Gigapixels from France
- Image Stitching module for QuickPHOTO - software module for live stitching of microscope images in resolution up to several gigapixels
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