Digital photography

3CCD is a term used to describe an imaging system used used by some video camcorders. 3CCD cameras have three separate charge-coupled devices, each one taking a separate measurement of red, green, and blue light. Light coming into the lens is split by a dichroic prism, which directs the appropriate wavelengths of light to its respective CCD. 3CCD"

*Agfa ePhoto 1280 (1997) (.7 megapixel) Agfa digital cameras"

A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. The term derives from the name of its inventor, Bryce Bayer of Eastman Kodak, and refers to a particular arrangement of color filters used in most single-chip digital cameras. Bayer filter"

A Bayer sensor is a digital image sensor (used in digital cameras, camcorders, and scanners) which uses a Bayer filter to create a color image. The Bayer filter is placed over light sensitive elements in a image sensor so that each element receives light of only one color (red, green, or blue). Bayer sensor"

(Calculating RGB values) * K. Parulsi and K. Spaulding (). Color image processing for digital cameras. In Digital Color Imaging, G. Sharma, ed. Boca Raton, Florida: CRC Press. 727–757. Calculating RGB values"

Computational photography refers to computer image processing in which the image acquisition is influenced by the desire to process multiple pictures of the same subject matter, into an aggregate image or image sequence. Computational photography"

dcraw is an open source, ANSI C computer program written by Dave Coffin. It is able to read several RAW image formats, and convert them into the PPM image format. Due to the proprietary nature of RAW images, dcraw is frequently updated to support new digital cameras. It has been used (and continues to be used) as the basis for numerous RAW applications (such as viewers and converters), both free and commercial. Dcraw"

A demosaicing algorithm is used to interpolate a complete image from the partial raw data that one typically receives from the color-filtered CCD or CMOS image sensor internal to a digital camera. Demosaicing"

Design rule for Camera File system (DCF) is an ISO specification which defines the file system for digital cameras, including the directory structure, file naming method, character set and file format. The file format of DCF is based on the Exif 2.1 specification. Design rule for Camera File system"

A digital camera, is an electronic device to transform images into electronic data. Modern digital cameras are typically multifunctional and the same device can take photographs, video, and/or sound. Digital camera"

Digital image editing is the process of altering digital images, whether they be digital photographs or other types of digitally represented images. Specialised software programs called vector graphics editors or bitmap graphics editors are the primary tools with which a user may manipulate, enhance, and transform images. These editors are capable of editing images in many diverse ways. Digital image editing"

Digital photography, as opposed to film photography, uses an electronic sensor to record the image as binary data. This facilitates storage and editing of the images on personal computers. Digital cameras now outsell film cameras and include features not found in film cameras such as the ability to shoot video and record audio. Some other devices, such as mobile phones, now include digital photography features. Digital photography"

A digital single-lens reflex camera (Digital SLR or DSLR) is a digital camera that operates on the same optical and mechanical principles as a standard film single-lens reflex camera. The key difference is that the film is replaced with a CCD or CMOS sensor plus accompanying electronics, thus creating images digitally like handheld digital cameras. DSLR contains more advanced shooting features than point&shoot; (P&S;) digital cameras, such as RAW shooting option, wider range of shutter speed and depth of field preview. Like SLRs, DSLRs are often used by professional photographers and advanced amateurs in preference to film SLR. This is due to a number of strong advantages to DSLR: Digital single-lens reflex camera"

DPOF (Digital Print Order format) is a format which allows the user of a digicam to define which captured images on the storage card are to be printed, together with information on the number of copies or other image information. DPOF"

An electronic viewfinder or EVF, is a viewfinder where the image captured by the lens is projected electronically on to a small miniature display for the purposes of lining up the camera on the object to be photograhed. Electronic viewfinder"

Eric Cheng is a professional photographer specializing in underwater photography. He owns and maintains Wetpixel, an underwater photography site. He has authored many web journals documenting his trips around the world, and has been published in numerous publications, both in print and on the web. Eric recently won the " Nature's Best Photography Competition," which will place some of his work in the Smithsonian's Natural History Museum. In , he was awarded an Antibes Festival Prize for his work with Wetpixel. Eric Cheng"

Exchangeable image file format (Exif) is a specification for the image file format used by digital cameras. It was written by the Japan Electronic Industry Development Association ( JEIDA). The specification uses existing file formats such as JPEG, TIFF Rev. 6.0, and RIFF WAVE audio file format, with the addition of specific metadata tags. It is not supported in JPEG 2000 or PNG. Exchangeable image file format"

The eXtensible Metadata Platform or XMP is a specific type of extensible markup language used in PDF, photography and photo editing applications. It was first introduced by Adobe Systems in April as part of their Adobe Acrobat version 5.01 program. Adobe has a trademark on XMP, and retains control over the Extensible Metadata Platform"

Fixed pattern noise is the term given to a particular noise pattern on digital imaging sensors often noticeable during longer exposure shots where particular pixels are susceptible to giving brighter intensities above the general background noise. Fixed pattern noise"

Fotki is a web portal. It was founded by Dmitri Don and Katrin Lilleoks as a digital photo sharing website in 1998. At present, it is a web service suite providing sharing of digital images, photo printing and online selling of photos, as well as spam-free e-mail, weblogs and full-scale co-branding. Fotki Premium accounts have neither ads nor banners. Fotki"

The Foveon X3 sensor is an image sensor for digital cameras produced by Foveon,Inc. It is a layered sensor design, in which each location in a grid has layered photosensors sensitive to all three primary colors, in contrast to the mosaic Bayer filter sensor design commonly used in digital camera sensors where each location is a single photosensor ( pixel) sensitive to only one primary color. Foveon X3 sensor"

Geocoded photos are images which are associated with a geographical location. A geocoded image can be associated to geographical coordinates such as latitude and longitude or a physical address. Geocoded photo"

gPhoto is a free software package of digital camera applications with support for more than 600 cameras. It is available under the GNU General Public License. gPhoto runs on GNU/Linux, FreeBSD, NetBSD and other Unix-like operating systems. GPhoto"

Image noise is mostly unwanted and manifested in the pixels of an image. It is inherent to digital cameras, and is generated, in part, by heat and low light conditions, and is often prominent in long exposures and photographs taken at high ISO sensitivity. Its effect is analagous to film grain. Image noise"

An image sensor is a device that converts visual image to an electric signal. It is used chiefly in digital cameras and other imaging devices. It is usually an array of charge-coupled devices or CMOS sensors. Image sensor"