S


safe action
A defined area for video display that indicates the space where the video action will be displayed on standard television screens.
safe title
A defined area for video display that indicates the space where the image is not distorted or cropped by the curve of standard television screens.
saturation
The intensity of a color . Saturation, or chroma, is determined by the percentage of the hue in proportion to gray, from 0 to 100 percent. Zero-percent saturation means that the color is entirely gray.
scanner
An electronic device that digitizes and converts photographs, slides, paper images, or other two-dimensional images into pixels.
scratch disk
An area of memory that Photoshop uses as a source of virtual memory to process images when the program requires more memory than the allocated amount.
screen angles
The angles at which the halftone screens are placed in relation to one another.
screen frequency
The density of dots on the halftone screen, commonly measured in lines per inch (lpi). Also known as screen ruling .
scrub slider
Photoshop CS enables users to scrub text fields found in pop-up slider interface controls as a shortcut to accessing the underlying slider interface (scrub behavior is indicated via a hand icon).
SECAM (Sequential Color and Memory) system
A video standard for television used in some European and Asian countries .
shadow
The darkest part of an image, represented on a digital image by pixels with low numeric values or on a halftone by the smallest or absence of dots.
Shadow/Highlight
A Photoshop CS command that lightens or darkens based on the brightness levels of surrounding pixels; this gives separate control to the process of adjusting exposure problems in shadows or highlights, as in the case of lightening a backlit image.
sidecar XMP and THM files
A sidecar file stores image-specific metadata and aids other applications in processing the metadata associated with an image file without increasing the size of the image file.
skew
To slant a selection along one axis, either vertical or horizontal. The degree of slant affects how pitched the final image appears.
slice
To cut an image into pieces, saving the individual parts as image files and writing an HTML document that reassembles the slices on the screen. Slicing increases the efficiency of displaying images with a Web browser by decreasing the download time. Slices also enable you to define rectangular areas as links to other Web pages or URLs.
SMPTE-C
A movie industry standard, compliant with the Society of Motion Picture and Television Engineers standards for motion picture illuminants.
snapshot
In Photoshop, a saved image s state. By default, when the image is opened, the History palette displays a snapshot of the image as it appeared when it was last saved. You can save the current image to a snapshot to preserve that state.
soft proof
An on-screen document that appears as close as possible to what the image will look like if printed to a specific device. Image formats that enable you to embed a soft proof profile in the saved document are Photoshop EPS, Photoshop PDF, and Photoshop DCS 1.0 and 2.0.
spectrophotometer
A device used to measure the color gamut of a printed page. From the data that the spectrophotometer collects, a profile can be written that can be used as a color working space.
splash screen
A screen that appears when you first load a program. For example, the default Photoshop splash screen indicates the components that are loading and program-specific data, such as the registered owner s name and the program s serial number.
spot color
Ink used in a print job in addition to black or process colors. Each spot color requires a plate of its own. Spot colors are printed in the order in which they appear in the Channels palette. Spot color channels are independent of the color mode of the image, which means that they are not blended with the other channels in a Grayscale, RGB, or CMYK image. Spot color channels are also independent of layers, which means that you cannot apply spot colors to individual layers . Image formats that support spot color are Photoshop (PSD), Photoshop PDF, TIFF, and Photoshop DCS 2.0.
sRGB color space
A color space designed for corporate computer monitors and images intended for Web applications. sRGB is the default color working space in Photoshop, but other color spaces are available.
state
In Photoshop s History palette, a stored version of an image. Each time you perform an operation, the History palette produces a state with the name of the operation or tool that was used. The higher the state appears in the stack, the earlier in the process the state was made.
stroking
Outlining a selection border with a color. In Photoshop, strokes can vary in width and relative position on the selection border.
subtractive primary colors
Cyan, magenta , and yellow, which are the printing inks that theoretically absorb all color and produce black. Because pigments subtract light components from the white light in the environment, they reduce its intensity, making it less bright than unfiltered light. Subtractive colorants reduce the amount of light reflected back at the viewer.



Photoshop CS Savvy
Photoshop CS Savvy
ISBN: 078214280X
EAN: 2147483647
Year: 2004
Pages: 355

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