Fiber Optics:
An optical system that uses glass or transparent plastic fibers as light transmitting media
File: A collection of information, such as text, data, or images saved on a disk or hard drive
File Format: A type of program or data file. Common image file formats include JPG, BMP, TIFF, PICT, GIF, and EPS.
File Server: A computer that serves as the storage component of a local area network and permits users to share its hard disks, storage space, files, etc
Fill Factor: The percentage of the physical area of an imaging pixel that is actually capable of detecting light. Part of a pixel is devoted to ?overhead? functions such as signal processing and data transfer. The percentage of the imaging pixel that is truly devoted to imaging is called the fill factor.
Film Recorder: A device that is used to record a digital image onto photosensitive film
Firewire: A high-speed serial bus developed by Apple and Texas Instruments that allows for the connection of up to 63 devices. Also known as the IEEE 1394 standard, the original spec calls for 100, 200 and 400 Mbits/sec transfer rates. IEEE 1394b provides 800, 1600 and 3200 Mbps. Firewire supports hot swapping, multiple speeds on the same bus and asynchronous data transfer, which guarantees bandwidth for multimedia operations. It is expected to be widely used for attaching video devices to the computer.
FITS: Functional Interpolating Transformation System. A format that contains all data used to design and assemble extremely large files in a small, efficient mathematical structure
Fixed Memory: Built-in, internal, non-removable flash memory that allows you to store images in the camera itself as opposed to storing images on removable cards or disks.
Flash Cards: Removable memory cards, similar in size and appearance to a credit card, onto which images from a digital camera can be stored
Flash Memory: A class of type memory chip able to retain data after the power has been removed, or the device (camera) has been turned off. The storage medium of digital cameras. Its advantage is that digital cameras with flash memory can have batteries go "dead" and yet retain image data. Flash memory does not require power to hold the images after they have been captured.
FlashPix: Trade name for a multi-resolution image file format in which the image is stored as a series of independent arrays.
Flatbed Scanner: An optical scanner in which the original image remains stationary while the sensors (usually a CCD linear array) passes over or under it. The scanned material is held flat rather than being wrapped around a drum.
Floppy Disk: A removable computer storage medium consisting of a thin flexible plastic disk coated with a magnetic material on both sides. The most common type is 3.5-inch, protected by a hard plastic case.
Focal Length: The distance from a lens to the point at which it is focused, usually expressed in millimeters.
Focusing Screen: A screen (template) which is placed in the image plane of an SLR which provides visual cues and references to the photographer as an aid in framing and focusing on an object. EFS-1 uses a focusing screen, which defines the limits of the CMOS image sensor's field of view.
F-Stop: The number assigned to a specific lens aperture (opening) size. The larger the number, the smaller the lens opening.
Fulfillment: The completion of an order marked by the shipment of product.
Full Bleed: A term to describe an image that extends to the edge of the printed paper
Genuine Fractals: An image enhancement software product of the Altamira Group which enhances the resolution of an image by using fractal geometry.
GIF: File Format Graphic Interchange Format. A raster oriented graphic file format developed by CompuServe to allow exchange of image files across multiple platforms. A bit-mapped graphics file format popular for storing lower resolution image data. A file format used commonly to store graphic images for web sites.
Gigabyte (GB): A measure of computer memory or disk space consisting of about one thousand million bytes (a thousand megabytes). The actual value is 1,073,741,824 bytes (1024 megabytes).
Gray Level: The brightness of a pixel. The value associated with a pixel representing it's lightness from black to white. Usually defined as a value from 0 to 255, with 0 being black and 255 being white
Grayscale: A term used to describe an image containing shades of gray as well as black and white. Refers to the number of shades of gray used to represent an image. The higher the grayscale, the more closely the captured image represents a black-and-white reproduction of the original.
Green Text: Green text is used in the EFS-1 manual to indicate a technical term or acronym that is included in the EFS-1 Glossary of Terms
GUI: Graphical User Interface. The graphical image presented on your computer screen that allows you to easily invoke the features of a software application by using such tools as drop-down menus, dialog boxes, radio buttons, check boxes, panels, tabs, toolbars, icon shortcuts, and other tools. The intent of a GUI is to present a simple, intuitive, pleasurable and efficient means by which to operate the application/program. For example the EFS-1 Twain driver GUI (also called a PhotoShop plug-in) allows you to control and adjust the EFS hardware and software with ease and efficiency.
Image An image reproduced through a special screen made up of dots of various sizes to simulate shades of gray in a photograph. Typically used for newspaper or magazine reproduction of images
High Colo:r A display or system that uses 16 bits of color data to represent each pixel. In 16-bit color, each pixel has 16 bits assigned to it, representing 65 thousand (65,536) possible colors. 16-bit color is often refereed to as "High Color", or "Thousands of Colors".
Hue: A term used to describe the entire range of colors of the spectrum. Hue is the component that determines what color you are using. In gradients, when you use a color model in which hue is a component, you can create rainbow effects.
Hyper-link: A string of text or an image which - if you click on it with your left mouse button - will take you to another place within a document or on the world-wide web. The EFS-1 manual uses hyper-links extensively to allow you to quickly move from topic to topic.
International Color Consortium. Established in 1993 for the purpose of creating, promoting and encouraging the standardization and evolution of an open, vendor-neutral, cross-platform color management system architecture and components.
Icon: A small graphic symbol or picture on a computer screen that represents a file, folder, disk, or command
Image: A representation of a visual scene. Conventional cameras replicate a scene by recording it with molecules on a piece of film using based upon silver halide chemistry. Digital images are stored electronically where the bits of data represent colors.
Image File Formats: Different methods of storing digital graphic images. Each format has a particular advantage or utility. Examples include JPEG, GIF, BMP,TIFF, PICT, FPX, PNG. Most software developers enable their imaging software to support a variety of graphics formats. The JPEG format is the most popular format for digital cameras.
Image Pac: A multi-resolution image file format developed by as part of the Photo CD System
Image Processing: The Capture and manipulation (processing) of images in order to enhance or extract information
Image Resolution: The number of pixels per unit length of image. For example, pixels per inch, pixels per millimeter, or pixels wide. This is known as spatial resolution.
Image Science: The science of: converting light into electrons, the processing of those electrons to correctly and accurately depict the true color of the image electronically, and the compression and storage of that information into a machine readable image file.
Imagek: The former name for Silicon Film Technologies
Imaging: The application and utility of imaging devices with their embedded image science
Import: The process of bringing data into a program from another computer program, with a different file format.
Ink-Jet Printer: An inexpensive alternative to a laser printer, an ink-jet printer forms text and images out of dots created by jets of ink. Color ink-jets support many different media sizes and output resolutions.
Interface: The physical means by which a camera connects to and transmits data to a computer. Typical interfaces are through the computer's serial port, parallel port, or through use of PCMCIA and CF cards - for computers equipped with a PC card reader, or notebook computers.
Internet: A large network made up of a number of smaller networks. "The" Internet is made up of well over 100,000 interconnected networks in more than 100 countries covering commercial, academic and government endeavors. Originally developed for the U.S. military, the Internet became widely used for academic and commercial research. Users had access to unpublished data and journals on a huge variety of subjects. Today, the Internet has become commercialized into a worldwide information highway, providing information on every subject known to humankind. The Internet's surge in growth was twofold. As the major online services (America Online, CompuServe, etc.) connected to the Internet for e-mail exchange, the Internet began to function as a central hub for e-mail outside of the Internet community. A member of one online service could send mail to a member of another using the Internet as a gateway. The Internet glued the world together for electronic mail. Secondly, World Wide Web servers on the Internet link documents around the world, providing an information exchange of unprecedented proportion that is growing exponentially. With the advent of graphics-based Web browsers such as Mosaic and Netscape Navigator, and soon after, Microsoft's Internet Explorer, this wealth of information became easily available to users with PCs and Macs rather than only scientists and hackers at UNIX workstations. The Web has also become "the" storehouse for drivers, updates and demos that are downloaded via the browser.
Interpolated Resolution: Software-generated image resolution based on the values obtained through physical image resolution. Using mathematical algorithms you may enlarge a small picture.
IrDA: Infrared Data Association. An association of manufacturers that have developed a standard for transmitting data via infrared light waves. Computers and digital cameras that are equipped with IrDA ports can transmit data from one to the other without any cables.
ISO: rating International Standards Organization rating. A rating expressed as a number indicating a digital camera's (or film's) sensitivity to light. The larger the number, the greater sensitivity to light.
IVUE: A file format associated with FITS technology that enables images to be opened and displayed quickly by showing only as much data on the screen as is needed by the screen size and zoom factor.
The jagged stair-stepping effect seen in digital images especially on diagonal lines, in images which are enlarged.
JFIF: JPEG File Interchange Format. A minimal file format which enables JPEG bitstreams to be exchanged between a wide variety of platforms and applications.
JPEG: Compression Joint Photographic Experts Group Compression. A file compression standard established by the Joint Photographic Experts Group that uses a combination of DCT and Huffman encoding to compress images. JPEG is a "lossy" compression algorithm, meaning that it slightly degrades image quality. A technique for compressing high-color bit-mapped graphics. A universal standard and technique for the digital compression and decompression of still images for use in digital camera and computer imaging systems developed by the Joint Photographic Experts Group. Usually used for compressing full-color or gray-scale images.
An amount of computer memory, disk space, or file size consisting of 1024 bytes.



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