Apple Aperture 2 - Manual (Page 664)

664 Glossary
resolution The amount of information a digital image is capable of conveying.
Resolution is determined by the combination of file size (number of pixels), bit depth
(pixel depth), and dots per inch (dpi). See also
bit depth , dots per inch (dpi) , pixel .
retouching The process of altering an image to add or remove details. See also Clone
brush , compositing , effects , filters , Repair brush , Retouch tool .
Retouch tool In Aperture, a pair of brushes used to correct or obscure imperfections in
an image. Used in conjunction with the Retouch HUD. See also
Clone brush , Repair brush .
RGB Short for Red, Green, Blue. A color space commonly used on computers, in which
each color is described by the strength of its red, green, and blue components. This
color space directly translates to the red, green, and blue elements used in computer
displays. The RGB color space has a very large gamut, meaning it can reproduce a wide
range of colors. This range is typically larger than printers can reproduce. See also
additive color .
rods A type of receptor in the eye capable of perceiving luminance. Rods do not
perceive color, but only levels of brightness. See also
cones .
saturation The intensity of color in an image. Saturated colors are perceived to have a
“purer” look, resulting from the absence of the color gray. See also
adjustment , desaturate .
Saturation parameter An Enhance adjustment parameter in Aperture used to adjust
saturation in an image. See also
adjustment , desaturate , Enhance adjustment , saturation .
Search Scope setting A setting in Aperture preferences that allows you to choose
whether or not EXIF information is included in searches. See also
EXIF .
Secondary Viewer The Secondary Viewer is used to present images on multiple displays
separately from the application workspace. The Secondary Viewer has five settings:
Desktop, Blank, Mirror, Alternate, and Span. See also
Alternate setting , Blank setting ,
Desktop setting , display , Main Viewer , Mirror setting , Span setting , workspace views .
selective focus The process of isolating a subject by using an f-stop that produces a
shallow depth of field. See also
depth of field .
Select rating In Aperture, the highest rating that can be applied to an image as part of
the photo editing process. A Select rating is applied when you intend to display or
distribute the image. See also
photo edit , rating , Reject rating .
sepia A photograph with a brown tint. See also photograph , Sepia Tone adjustment ,
Tint adjustment .
Sepia Tone adjustment An adjustment in Aperture that changes a color image to
sepia—allowing you to desaturate the color image to the level of sepia coloring you
want. See also
adjustment , desaturate , image , sepia , Tint adjustment .