4 Image Processing

Overview

This chapter introduces concepts that may be new to many users. The

 

Kodak i55 and i65 Scanners provide the ability to process scanned

 

images to improve their quality. Using these features the scanner can

 

sometimes make the scanned image look better than the original

 

document. Basic image processing concepts are reviewed in this

 

chapter to help you take advantage of these powerful features.

 

Image processing refers to several separate features of the scanner

 

that allow you to automatically adjust each image in a certain way that

 

may improve the resulting images. Common examples of image

 

processing features are correcting any skew in the fed document,

 

cutting the edges of the image off to remove any unneeded border or

 

cleaning up extraneous “noise” on the image. The idea is to do this

 

automatically so you can get better images with a minimum amount of

 

rework.

 

The information that follows describes the image processing features

 

by walking you through the Scan Validation Tool. The same options

 

should be available on the user interface of the software application you

 

are using (i.e., Kodak Capture Software). All fields on the Scan

 

Validation Tool are described in this chapter.

Common terms

Following are a few common terms that are used throughout this

 

chapter:

 

Bi-tonal or Binary — black-and-white.

 

Color — full color image, grayscale is derived from the color scan.

 

Simplex — indicates that only one side of the document (the front side)

 

will be scanned, creating a single page image.

 

Duplex — indicates that both sides of the document will be scanned,

 

creating two page images.

 

Cameras — it is important to understand the concept of “cameras”, the

 

component in the scanner that is used to scan your documents.

 

The Kodak i55 Scanner is a simplex scanner. The camera has the

 

ability to separate color and bi-tonal/binary data simultaneously. This

 

means it scans one-sided documents; a front color image and a front bi-

 

tonal/binary image, allowing you to capture one side of a document

 

either in color/grayscale or black-and-white at the same time.

 

The Kodak i65 Scanner is a duplex scanner. The cameras have the

 

ability to separate color and bi-tonal/binary data simultaneously. This

 

means it scans both sides of a two-sided document; a front color

 

image, a rear color image, a front bi-tonal/binary image, and a rear bi-

 

tonal/binary image, allowing you to capture both sides of a document in

 

either color/grayscale, black-and-white, or a combination of color/

 

grayscale and black-and-white.

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A-61527 May 2006