Kofax vrs4 사용자 설명서

Operating VRS

VRS User’s Manual

Follow these general rules for removing noise from a document:

• If you have batches of mixed documents with varying quality, never use the 

Speckle Removal filter. You could risk losing information on documents.

• If the noise was produced by bleed-through of text from the back side or 

background patterns (such as the patterns commonly found on boarding 

passes), decrease the contrast from the Clarity panel. If text starts to disappear 

as you remove the noise, compensate by adjusting the Brightness slider to a 

lower setting.

• If the noise is produced by shaded backgrounds, gradients, or dark-colored 

paper, increase the brightness from the Clarity panel.

• If you have only one or two kinds of documents with consistent quality, try to 

apply various levels of the speckle removal filters.

• If the filter removes part of the characters even at low levels of the speckle 

removal filter, apply the rules for mixed batches.

X To update the Noise panel settings

From the VRS Adjustment Controls, select the Noise panel.

Use the Line Filter slider to select the amount of thinning/thickening to apply 

to image elements. 
• Move toward Thin for image elements ballooned or blended together.

• Move toward the Thick setting for image elements too thin or too light.

Use the Speckle Removal Filter slider to remove unwanted black dots. 
• Move the slider toward Small if removal of small dots will achieve the 

desired image quality.

• Move the slider toward Medium if removal of small and medium dots will 

achieve the desired image quality.

• Move the slider toward Large if removal of small, medium, and large dots 

will achieve the desired image quality. Moving the slider too far to the 

right may interfere with text recognition.

Click OK. 

Changes to the Noise panel are handled according to circumstances 

under which the VRS Interactive Viewer launched. If the viewer opened as 

the result of an exception, changes apply to the exception image only. If the 

viewer opened because you selected Preview or First Page mode, changes 

apply to all subsequent scans. Upon restart, the Noise panel is reset to the 

settings associated with the last selected profile.