HP 4400C HP Scanjet 4400C/5400C Series Scanner Mac - (English) User Manual - Page 128
white. In a grayscale image, each pixel contains multiple bits of, information
UPC - 725184800566
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128 Glossary The Flowed Text option converts output into one column, placing images as closely as possible to the appropriate text. The Framed Text option places text and images in a frame, positioned as closely as possible to the way they appear in the original document. Text may be more difficult to edit extensively since the frames may not expand to hold additional text. Refers to the sharpness of an image. The area on the front of the scanner hardware containing the buttons for sending an item to a destination or changing settings. g The contrast that affects the mid-level grays or midtones of an image. Adjusting the gamma of an image allows you to change the brightness values of the middle range of gray tones without dramatically altering the shadows and highlights. This applies to both black-and-white images and color images. The default setting of 2.2 ensures integrity among computer systems. Back to TOC Refers to images, pictures, or photographs in which individual pixels are relatively large and have areas of white between them, thus reducing the overall perceived quality of the image. Graininess can occur when you scan a poor-quality original or reduce the bit depth of the scanned image by dithering or halftoning. A graphic file format that is supported by many programs. Files saved in this format support 256 colors. An original or output type containing shades of gray, not just black and white. In a grayscale image, each pixel contains multiple bits of information, allowing more shades of gray to be recorded and displayed. Four bits can reproduce up to 16 levels of gray, and eight bits can reproduce 256 shades of gray. Grayscale is commonly used for black-and-white original photographs but is also effective in maintaining shading in pencil drawings. h An original composed of a pattern of dots that tricks the eye into seeing shades of gray or color. Halftones are common in all printed materials. Scanning halftones instead of photographic originals can result in lower final image quality. The vertical dimension of a scan as it will appear at its destination.