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JPEG 2000 (JP2) is an image compression standard and coding system. It was developed from 1997 to 2000 by a Joint Photographic Experts Group committee chaired by Touradj Ebrahimi (later the JPEG president), [1] with the intention of superseding their original JPEG standard (created in 1992), which is based on a discrete cosine transform (DCT), with a newly designed, wavelet-based method.
Continuously varied JPEG compression (between Q=100 and Q=1) for an abdominal CT scan. JPEG (/ ˈ dʒ eɪ p ɛ ɡ / JAY-peg, short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) [2] [3] is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.
The DOC files created with Microsoft Word versions differ: Word for Windows 1.0 and 2.0 uses a format that was changed in the following Word 6.0 and 95 ("7.0") releases. DOC was changed once again into an OLE and CFBF-based format used from Word 97 ("8.0") to 2003 ("11.0"). Word for MS-DOS used its own specific DOC format. [5]
Camera raw file size is typically 2–6 times larger than JPEG file size. [40] While use of raw formats avoids the compression artifacts inherent in JPEG, fewer images can fit on a given memory card. However, the large sizes and low prices of modern memory cards mitigate this.
Aliasing is manifested in the case of 2D images as moiré pattern and pixelated edges, colloquially known as "jaggies".Common signal processing and image processing knowledge suggests that to achieve perfect elimination of aliasing, proper spatial sampling at the Nyquist rate (or higher) after applying a 2D Anti-aliasing filter is required.
An entire class of operations [clarification needed] on binary images operates on a 3×3 window of the image. This contains nine pixels, so 2 9 or 512 possible values. . Considering only the central pixel, it is possible to define whether it remains set or unset, based on the surroundi
The Nikon D600 is a 24.3-effective-megapixel FX-format full-frame digital SLR camera from Nikon released on September 13, 2012 [1] targeted at professionals [2] and enthusiasts. [3]