Canon CanoScan D2400UF CanoScan D1230U/D2400U ScanGear CS-U 6.1 for Win Guide - Page 105
Preview image cache, Proportion, Remove Dust and Scraches, Resolution, Rotate Left, Rotate Right
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Glossary Top Page Glossary Contents Index Preview image cache When the preview image cache feature is switched on, the image in the Preview Area from the previous session with ScanGear CS-U is saved and displayed the next time ScanGear CS-U is launched from the parent software application. To switch this feature on and off, open the Preferences sheet for your scanner and click the button for "Display saved preview image". Proportion The ratio of width to height. When you click the Keep Proportions button, the image size is maintained in the same proportion whenever you change either the width or the height. Remove Dust and Scraches This function is available with a Film Adapter Unit FAU-S13 equipped CanoScan D2400U. It utilizes the properties of infrared light to detect small flecks of dirt or scratches on film and retouches them. Resolution The degree of detail, translated into the number of pixels or dpi, which a device such as a scanner, video monitor, printer, or other imagedisplaying device, can display or reproduce. See also dpi, Pixel, Scan Resolution. Rotate Left The Rotate Left tool rotates the preview display 90 degrees counterclockwise. If the Preview Area is in portrait orientation, it becomes landscape and vice versa. Rotate Right The Rotate Right tool rotates the preview display 90 degrees clockwise. If the Preview Area is in portrait orientation, it becomes landscape and vice versa. Sampling In scanning, sampling is the process of measuring and recording the tonal or color value in an image and converting it to digital information. 105