Apple Aperture - Manual (Page 443)

Glossary 443
hot shoe An apparatus at the top of a camera designed to hold a portable flash. When
the shutter release button is pressed, an electric signal is transmitted through a
connection in the hot shoe to activate the portable flash. See also
external flash , flash .
HUD Short for heads-up display. In Aperture, HUDs are floating tool panels that allow you
to work on your image in regular and Full Screen mode. You can open and then move a
HUD wherever you wish, based on your display setup. See also
Full Screen mode .
hue An attribute of color perception; also known as color phase. Red and blue are
different hues.
International Color Consortium (ICC) An organization established to create the color
management standard known as the ICC profile. ICC profiles are universally accepted by
hardware and software vendors because they’re based on an open standard. See also
ICC profile .
ICC profile Created as a result of device characterization, the ICC profile contains the
data about the device’s exact gamut. See also
device characterization , gamut ,
International Color Consortium (ICC) .
importing The process of bringing digital image files of various types into a project in
Aperture. Imported files can be created in another application, downloaded from a
camera or card reader, or brought in from another Aperture project. See also
project .
inkjet printer A type of printer that creates images by spraying little ink droplets onto
the paper. See also
dye sublimation , print , photo printer , RA-4 .
IPTC Short for International Press Telecommunications Council. IPTC metadata is used by
photographers and media organizations to embed keywords (words describing the
characteristics of the image, including the photographer’s name) in the image files
themselves. Large publishers typically use image management systems to quickly identify
images based on the IPTC information embedded in the image. See also
EXIF , metadata .
iris See pupil .
ISO speed The relative sensitivity of film provided as a benchmark by the International
Standards Organization (ISO). In digital cameras, the minimum ISO rating is defined by
the sensitivity of the digital image sensor. When the ISO setting on the camera is
increased, allowing the photographer to shoot in low-light situations, the camera
amplifies the voltage received from the light-sensitive elements on the digital image
sensor prior to converting the voltage signals to digital values. See also
digital image
sensor , digital noise .
JPEG Short for Joint Photographic Experts Group, JPEG is a popular image file format
that lets you create highly compressed graphics files. The amount of compression used
can be varied. Less compression results in a higher-quality image. See also
format .