Fujitsu M3097DG 3.2.3Binary reading, Table 3.4 Parameter of Binarization

3.2 Basic image functions

3.2.3Binary reading

[A.4.7 SET WINDOW command / Image Composition = X’00’]

Following three parameters are available when binarizing the image. The 256 levels of the density at each pixel is processed by Contrast and binarized by Threshold. When the White level following is se ON, the white level of the CCD output follows the background of the document. So this is useful for line art drawing but not for photograph.

Table 3.4 Parameter of Binarization

Parameter	value	Effect of parameter	Default
Threshold	X’01’	Brightest
*1	to
	X’10’	Normal	X’80’
	to		(*1)
	X’FF’	Darkest
Contrast	X’01’	Mostly soft contrast
	to
	X’10’	Normal	X’80’
	to
	X’FF’	Mostly sharp contrast
Gamma	X’01’	Normal	X’01’
pattern	X’02’	Soft
	X’03’	Sharp
	X’80’	Use download pattern
	to
	X’84’
White level	ON	The threshold follows the background of
following		the document. (*2)	ON
	OFF	The threshold do not follow the
		background of the document.

*1 When the IPC-2D or IPC-3D is installed, the Threshold varies along with the control of DTC mode or IPC mode.

*2 3 mm from top of the document must be white or drop-out color (See section 2.6.5)

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