Adobe 65045315 Photoshop Elements Manual - Page 338

USING PHOTOSHOP ELEMENTS 10 332 Glossary revert The command that reverts the image to the last saved version. RGB A model for representing colors on a computer display. Red, green, and blue (RGB) are combined in different proportions to represent any color. The RGB model can represent 256 x 256 x 256 colors. RGB working space profile A color profile that defines an RGB working space, such as that for a digital camera or scanner. RLE (run length encoding) A lossless technique for compressing the transparent portions of each layer in images. (See also "lossless compression" on page 328.) S sample To select a color with the eyedropper in order to use it with a drawing or painting tool. saturation The purity, or strength, of a color. A fully saturated color contains no gray. Saturation controls make colors more vivid (less black or white added) or more muted (more black or white added). scanning The process of converting a tangible image, such as a slide or print, into a digital image by using light shining onto sensors such as Charged Couple Devices (CCDs). scatter Determines how brush marks are distributed in a stroke. scatter spacing Determines the spacing between elements in a brush stroke. Scitex file A high-resolution file for use with proprietary Scitex systems. Photoshop Elements can open Scitex files that are in RGB color mode. scratch disk Photoshop Elements' own virtual memory system, which uses any disk drive or drive partition with free space. You can designate scratch disks to be used whenever there is not enough RAM to perform an operation. screen resolution The dimensions of the pixel grid used by a monitor. selection A part of an image selected for manipulation of any kind-duplication in a layer, color correction, deletion, rotation, and so on. The selection consists of all the pixels-fully or partially selected-contained within the selection boundary. selection module A plug-in that enables you to make a selection in Photoshop Elements, such as the TextureSelect plug-in that is used by the Magic Selection Brush tool and the Magic Extractor. sepia print A photograph in tones of brown. Photo-editing programs simulate this antique look by applying special effects. shadows The darkest elements in an image, and the degree of detail that is discernible in those the dark portions. (See also "highlights" on page 327.) shape layer A layer that contains vector-based shapes. (See also "layer" on page 328.) sharpening In photo-editing programs, any functionality that enhances the details at the edges of photographed objects and people. Sharpening is often applied as part of in-camera processing as well, although no sharpening is applied to camera raw file images. (See also "Unsharp Mask" on page 334.) sharpening halo An artifact, seen as a bright ring or line around edges, caused by too much sharpening. (See also "artifact" on page 322.) silhouette A dark mass outlined against a light background. simplifying Converting a text layer, shape layer, solid color layer, gradient layer, or pattern fill layer to a regular image layer. You must simplify these layer types before applying filters or using the painting tools. single channel images An image that contains one channel such as a bitmap-mode, grayscale, or indexed-color image. Last updated 1/2/2012