'' <_summary>Device to scan from <_description>SANE device to acquire images from. 'photo' <_summary>Type of document being scanned <_description>Type of document being scanned. This setting decides on the scan resolution, colors and post-processing. 0 <_summary>Width of paper in tenths of a mm <_description>The width of the paper in tenths of a mm (or 0 for automatic paper detection). 0 <_summary>Height of paper in tenths of a mm <_description>The height of the paper in tenths of a mm (or 0 for automatic paper detection). 0 <_summary>Brightness of scan <_description>The brightness adjustment from -100 to 100 (0 being none). 0 <_summary>Contrast of scan <_description>The contrast adjustment from -100 to 100 (0 being none). 150 <_summary>Resolution for text scans <_description>The resolution in dots-per-inch to use when scanning text. 300 <_summary>Resolution for photo scans <_description>The resolution in dots-per-inch to use when scanning photos. 'both' <_summary>Page side to scan <_description>The page side to scan. '' <_summary>Directory to save files to <_description>The directory to save files to. Defaults to the documents directory if unset. 75 <_summary>Quality value to use for JPEG compression <_description>Quality value to use for JPEG compression.