Ricoh ImageReader FB735, Руководство пользователя

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4.-6
4.2 Scanning Parameters & Image Control
Resolution: The number of dpi (dots (pixels) per square inch)
that the FB7 uses for a scan. Generally, denser
pixel coverage per square inch (higher resolution)
results in sharper images. Please note: Scanning
resolution has a direct impact on the scanned image
file size - higher resolution settings result in a larger
file size. Increased demands on your disk space
due to high resolution settings can also slow down
the scanning process. Avoid exceeding the
recommended resolution settings for your scanning
task (refer to the scanning software User Guide).
Brightness: Adjusts the lightness or darkness of an image. The
higher the value, the brighter the image.
Contrast: Adjusts the range between the darkest and the
lightest shades in the image. The higher the
contrast, the bigger the different gray scales.