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VRS Getting Started Guide

Accelerated Scanning

While high resolution settings have a positive impact on image quality, they can slow down the

scanning process. With Accelerated Scanning in effect, VRS achieves the quality of a high

resolution image without compromising speed. To maintain speed, VRS scans the image at a rate

that is lower than the DPI (dots per inch) rate defined in your scanning application. Then, VRS

performs an internal translation so that the image is output at the desired DPI setting.

To illustrate, suppose you select 300 DPI in your scanning application and enable Accelerated

Scanning from the Options tab in VRS. As a result, the image scans at 200 DPI to maintain speed,

and VRS translates it to 300 DPI to achieve the desired resolution. The table below lists the DPI

settings that VRS uses for Accelerated Scanning.

Note: If you select a DPI setting of 400, VRS automatically puts Accelerated Scanning into effect.

Table 5. Accelerated Scanning DPI Settings

Your DPI Setting

400

300

240

200

VRS Refresh

To minimize the time it takes for the VRS Viewer to update an image when you apply property

changes, enable the VRS Refresh function. With VRS Refresh, you ensure that VRS updates

images as quickly as possible.

Intelligent Contrast Adjustment / Brightness Adjustment

With Intelligent Contrast Adjustment/Brightness Adjustment, VRS automatically selects the

optimal values for contrast and brightness. This saves time and eliminates guesswork, and you

achieve the best possible image quality for every page in a batch of documents.

For example, if you scan a yellow invoice and enable Intelligent Contrast Adjustment and

Intelligent Brightness Adjustment, VRS automatically adjusts the contrast and brightness values

to produce the best image quality for the colored sheet. When "intelligent" settings are enabled

for a batch, VRS automatically applies the most accurate settings to each image in the batch. As

you scan, the intelligent values for contrast and brightness are reported for each page on the

Analysis tab. On the Clarity tab, the red dotted line and the slider positions are automatically

updated to reflect the intelligent values detected by VRS. See the section Using the Clarity Tab on

page 25.

To change the selections on the Options tab

From the VRS Interactive Properties dialog box, select the Options tab.

Under Automatic, Accelerated, and Intelligent, select the options that you want to enable

for the next batch scan.

Actual Scan DPI Setting

300

200

Image Output DPI Setting

400

300

240

200

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