Apple MB673Z/A User Manual - Page 664

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. 664 Glossary