I SETTING

Definition: mark found on some cheap box cameras which indicates an instantaneous shutter speed of approximately 1/50 second.

I/O

Definition: Acronym for input / output. Input may be a camera, tape, disk, video, scanner, and output may be tape, disk, CD-ROM, film recorder, printer.

ICC

Definition: The International Colour Consortium, An industry group that has endorsed a standard format for device profile.

ICON

ICON
Definition: This is a little picture on a computer screen that represents the various functions of the computer. Generally the user clicks on an icon to start an application or function.

IF (INTERNAL FOCUSING)

IF (INTERNAL FOCUSING)
Definition: system in which only the internal lens group shifts during focusing. IF benefits include focusing without changing the physical length of a lens body, faster focusing, reduced diameter of the focusing ring, closer minimum focusing distance, and aberrations corrected throughout the entire focusing distance range.

IHS (INTENSITY, HUE, AND SATURATION)

Definition: A color model where colors are expressed by three values representing Intensity, Hue, and Saturation. Ink Jet Definition[ A nonimpact printing technology where ink droplets are propelled at the paper to form characters or graphics.

ILFOCHROME

Definition: Formerly Cibachrome. A type of colour printing that produces positive prints directly from transparencies.

ILLUMINANCE

Definition: Is the term quantifying the illumination of, or incident light falling on a surface.

Definition: The strength of light falling on a given area of a surface. Measurable by an incident-light (illuminance) meter.

Definition: term quantifying the illumination of, or incident light falling on a surface.

ILLUMINANCE METER

Definition: See incident-light meter.

IMAGE

Definition: two dimensional representation of a real object, produced by focusing rays of light.

IMAGE BROWSER

Definition: An application that enables you to view digital photos. Some browsers also allow you to rename files, convert photos from one file format to another, add text descriptions, and more.

IMAGE CAPTURE

Definition: The use of a device, such as a scanner or digital camera, to create a digital representation of an image. This digital representation can then be stored and manipulated on a computer.

IMAGE EDITOR

Definition: Software programs that have been designed specifically for capturing, creating, editing, and manipulating images. Examples of these programs are Adobe Photoshop, Adobe Illustrator, Macromedia FreeHand, and CorelDRAW.

Definition: A computer program that enables you to adjust a photo to improve its appearance. With image editing software, you can darken or lighten a photo, rotate it, adjust its contrast, crop out extraneous detail, remove red-eye and more.

IMAGE FILE SIZE

Definition: The amount of computer storage space a file requires; usually measured in kilobytes (K) or megabytes (M, MB, mgs or "megs"). An image file that is 5 x 7 inches, 8- bit gray (as in a black and white photo), resolution 300dpi, is 3M in size. (A floppy disk holds 1. 3M).

IMAGE FORMAT

Definition: Refers to the specification under which an image has been saved to disk or in which it resides in the computer memory. There are many commonly used digital image formats in use. Some of the most used are TIFF, BMP, GIF,and JPEG. The image format specification dictates what image information is present and how it is organized in memory. Many formats support various sub-formats or flavors.

IMAGE PLANE

Definition: Is the plane commonly at right angles to the optical axis at which a sharp image of the subject is formed. The nearer the subject is to the camera, the greater the lens image plane distance.

IMAGE PROCESSING

Definition: The general term "image processing" refers to a computer discipline wherein digital images are the main data object. This type of processing can be broken down into several sub-categories, including: compression, image enhancement, image filtering, image distortion, image display and colouring.

IMAGE RESOLUTION

Definition: The amount of data stored in a image file, measured in pixels per inch (dpi).

IMAGE SENSOR

Definition: The type of device used in digital camera and camcorders to capture an image. The 2 most common types are known as CCD (charge-coupled device) and CMOS (complementary metal oxide semiconductor)

IMAGE SIZE

Definition: Describes the actual physical dimensions of an image, not the size it appears on a given display device.