Ricoh FS2 Options

Black and White Options

When scanning in black and white, three half toning techniques are
available.  The first, "Threshold", uses the value of the "Threshold"
scroll bar to determine the value of each pixel.

The second, "Ordered Dither", uses the "Dither Pattern" shown to
determine the value of each pixel.

The third, "Error Diffusion", uses error diffusion to determine the
value of each pixel.

In addition to these half toning techniques, the "Greyscale and Black
and White Options" (see below) also determine the value of each pixel.

Greyscale and Black and White Options

The "Gamma Type" is the method used to map pixels from the scanner's
input, which has 10 bits per pixel, to the scanner's output, which has
8 bits per pixel.  Experiment with the different types to determine
which is most appropriate for your particular application.

"Brightness" affects how light the image is, and "Contrast" affects
differences between light and dark.

Color Options

The "Color Options" are identical to the "Greyscale and Black and
White Options", except that there are three sets of "Gamma Type",
"Brightness", and "Contrast" controls, one each for the red, green,
and blue components of the image.

If the "Change Colors Together" toggle button is on, then changing
values for one of the colors changes that value for the others as
well.  If the "Change Colors Together" toggle button is off, each
color can be manipulated independently of the others.

The "OK" button tells the scanner driver to use the options specified,
and dismisses the "Ricoh FS2 Options" window.

The "Apply" button tells the scanner driver to use the options
specified without dismissing the "Ricoh FS2 Options" window.

The "Cancel" button dismisses the "Ricoh FS2 Options" window without
changing the options.