![]() ![]() The -sharpness switch sets the sharpness of the image data. If a user defined table for the gamma correction is selected, the brightness parameter is not available. The larger the brightness value, the brighter the image gets. Valid options are the numbers from -3 to 3. The -brightness switch controls the brightness of the scan. scan an original with a colored background. The dropout color is used for monochrome scanning and selects the color that is not scanned. Valid options are None, Red, Green and Blue. The -dropout switch selects the so called dropout color. ![]() Valid options are None, Halftone A (Hard Tone), Halftone B (Soft Tone), Halftone C (Net Screen), Dither A (4x4 Bayer), Dither B (4x4 Spiral), Dither C (4x4 Net Screen), Dither D (8x4 Net Screen), Text Enhanced Technology, Download pattern A, and Download pattern B. The -halftoning switch selects the mode that is used in Binary mode. ![]() Valid choices are None, Red, Green and Blue. The -dropout option determines which color filters are used to scan in Binary mode. Some scanners will internally use 36 bit color, the external interface however does only support 24 bits. The Binary mode is black and white only, Gray will produce up to 256 levels of gray and Color means 24 bit color mode. Scan Mode The -mode switch selects the basic mode of operation of the scanner valid choices are Binary, Gray and Color. Valid command line options and their syntax can be listed by using scanimage -help -d epkowa Not all devices support all options. OPTIONS The options the backend supports can either be selected through command line options to programs like scanimage or through GUI elements in xscanimage or xsane. Please send mail to to report successes or failures. This backend should be considered alpha-quality software!Īt present, the following scanners are known to work with this backend: Model:įor other scanners the software may or may not work. NAME sane-epkowa - SANE backend for EPSON scanners DESCRIPTION The sane-epkowa library implements a SANE (Scanner Access Now Easy) backend that provides access to EPSON flatbed scanners. ![]()
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