The pix-filter-level option defines the balance between foreground and background pixels. A value of 0 indicates that the maximum number of pixels should be placed into the foreground, and a value of 100 indicates that the maximum number of pixels should be placed in the background. A value of 50 is the optimum setting for most 300 dpi documents. The default is 25.
Increase the pixel filter value to remove very small shapes from the foreground, smooth out edges, and remove halftoning. Decrease to avoid dropping of characters. This is the most efficient option level to manage the foreground/background tradeoff; always try to tune it first.
For more information about the foreground and background layers, see Segmentation Process.
Supporting command:
documenttodjvu