Adobe 29180155 User Guide - Page 306

ADOBE PHOTOSHOP ELEMENTS 4.0 301 User Guide brightness The relative lightness or darkness of an image, which determines the intensity of colors. Also, the relative lightness or darkness of any color. Compare luminance. brightness value The brightness of an image or selection, usually measured as a percentage from 0% (black) to 100% (white). brush preset A brush with preset settings for size, thickness and so on. Photoshop Elements includes several brush presets for you to choose from, and you can create your own as well. The maximum number of brush presets that you can create in Photoshop Elements: 8000. brush type One of the following brush tool styles: brush, impressionist brush, or airbrush. burning The selective darkening of a part of an image. C cache file A file used for virtual memory. The cache file speeds the performance of Photoshop Elements. calibrate dialog The dialog box for your monitor calibration software. For example, the Adobe Gamma dialog box. camera raw file A photo file containing unprocessed image information, exactly as it comes off the sensor before in-camera processing. You can then process the file on your computer. camera raw format A format describing data exactly as it is captured by a camera, with no in-camera processing applied. You can send camera raw files directly for processing in Photoshop Elements. Also called raw format. It is not the same as Photoshop raw format. canvas The work space around an existing image, within the image window. Layer data may lie outside of the canvas, but it will be clipped to the canvas when the image is flattened. You can change the size and color of the canvas by choosing Image > Resize > Canvas Size. caption Either a text or audio note attached to a photo. card reader Portable hardware on which you can store, upload, or download photos, audio, video, and other data. You can download data from a card reader into Photoshop Elements. CCITT Comité Consultatif International Téléphonique et Télégraphique. A group that defines communications standards. Now known as the ITU-T (International Telecommunications Union-Telecommunication Standardization sector). The CCITT has developed a family of lossless compression techniques for black-and-white images. channel A construct for describing the color data in an image. A black-and-white grayscale image has one channel, an RGB image has three, and a CMYK image has four. Ordinarily, a channel describes either red, green, or blue, which are blended to create all colors. chroma The purity, or strength, of a color. Also called saturation. 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). CIE Commission Internationale de l'Éclairage. A group that defined universal color standards in the early 1930s. The Lab color model was developed by CIE. clipboard The temporary holding area for data stored with the Cut or Copy commands. clipboard path data Data for vector paths stored on the clipboard. Vector paths are used with vector data such as type layers or shape layers. clone To paint with the Clone Stamp tool. You must set a sampling point on the active layer before you paint with the Clone Stamp tool. CMap files Files used to access character sets in double-byte fonts such as Japanese fonts.