The resolution-multiplier option decreases (or maintains) the size of the image for segmentation purposes. The Document Express segmenter is designed to be most effective with images that are 300 dpi. If you are encoding an image that is over 400 dpi, assign a value of 2 to the resolution-multiplier option. Doing so alerts the segmenter that it should skip every other pixel and row when it analyzes the image, thereby reducing the image's scanned resolution by half. If you are encoding an image that is below 400 dpi, assign a value of 1 to this option to maintain the current resolution.
Supporting command:
documenttodjvu
For more
information, see Segmentation Process.