Kodak A-61506 Manuel utilisateur

A-61506 1/2004

CAT No. 137 0337

©Eastman Kodak Company, 2004

Printed in U.S.A.

EASTMAN KODAK COMPANY

Document Imaging

Rochester, New York 14650

www.kodak.com/go/docimaging

Kodak is a trademark of Eastman Kodak

Company.

COMMERCIAL

IMAGING

iNnovation Series Scanners

Reference

Guide

Brightness and

Contrast Control

A-61506

Part No. 9E3722

CAT No. 137 0337

014055 cover to print 11/8/04 12:39 PM Page 1

A-61506 September 2006 1

Using the Brightness and Contrast Control

This Reference Guide provides information and procedures for the

Brightness and Contrast Control.

Kodak provides a set of default color tables with the scanner. These

tables are bundled and installed with the Scan Validation Tool (SVT).

A color table is a file that can be downloaded to the scanner which

contains the information required for the scanner to output the desired

representation of your color document.

If the default color tables do not meet your specific needs, this tool may

be used to create your own custom color table. This custom color table

can then be downloaded to the scanner and used in production.

The color table to be used for front and rear images are set

independently. When scanning, only one color table can be applied to

each image (front or back). You can use the same color table for both

the front and the back, or use one color table for the front and one color

table for the back.

Use the Scan Validation Tool or your own application to download a

color table to the scanner.

For more information regarding the Brightness and Contrast Control,

see Appendix A, Color Concepts.

IMPORTANT:

• The Brightness and Contrast Control is not color management

software. The output from the Brightness and Contrast Control

cannot be used to modify monitors or printers. It is only intended to

modify the color image as produced by the scanner.

• Images created using a custom color table created using a specific

monitor may appear differently when viewed or printed on other

monitors or printers.

• Images used in this Reference Guide are for concept purposes only

and do not represent the expected image quality.

• Creation, use and management of any custom color table is your

responsibility. Kodak provides no support beyond verifying scanner

functionality using Kodak default color tables.

2A-61506 September 2006

Before you begin Before using the Brightness and Contrast Control, it is highly

recommended that you review the information below.

• The Kodak Scan Validation Tool must be installed. This installation

includes the TWAIN Datasource and the Kodak default color tables.

Both the Scan Validation Tool and the TWAIN Datasource are

required to run the Brightness and Contrast Control.

• Be sure your scanner is in good working order, cleaned and

calibrated. Refer to your User’s Guide for maintenance procedures.

• Verify that your scanner is capable of receiving custom color tables

created using the Brightness and Contrast Control. If not, you should

select the appropriate table from the default color tables provided by

Kodak for your scanner. You cannot use the Brightness and

Contrast Control to modify the default color tables.See the chart

below to determine if your scanner has this functionality.

• Before you create a custom color table, it is recommended that you

scan a representative group of documents and run these documents

with each of the Kodak default color tables. Analyze these images to

determine if any of the default color tables meet your needs. If not,

you may want to choose the color table which is closest to meeting

your needs. This default color table would be a good table to use as a

starting point to create your custom color table.

• When scanning color images, the following settings, in addition to

color tables, will effect perceived image quality, resolution, color

sharpening, JPEG compression (Good, Better, Best). Do not change

the value of these settings when comparing color image results using

the Kodak default color tables.

• When using Brightness and Contrast Control to create your own color

tables, be sure to select the same resolution (DPI) you used when

evaluating the sample images with the Kodak default color tables.

Resolution is selected using the DPI option from the File menu.

Scanners Serial

Number

Minimum

Firmware

Version

Upgrade Kit

Kodak i800 Series

Scanners

12273100 and

higher

2.0.11 Image Processing

Upgrade Kit / for Kodak

i800 Series Scanners

(for serial numbers

below 12273100)

CAT No. 106 7974

Kodak i1860 Scanner

Kodak i600, i200, i100

Series Scanners

all Not applicable

Kodak i30 and i40

Scanners

all Not applicable

A-61506 September 2006 3

Supporting

documentation

Kodak i800 Series Scanners

• Image Processing Guide for Kodak i800 Series Scanners, A-61510

• Installation Planning Guide for Kodak i800 Series Scanners, A-61176

• User’s Guide for Kodak i800 Series Scanners, A-61169

Kodak i1860 Scanner

• Image Processing Guide for the Kodak i1860 Scanner, A-61580

• Installation Planning Guide for the Kodak i1860 Scanner, A-61578

• User’s Guide for the Kodak i1860 Scanner, A-61555

Kodak i600 Series Scanners

• Image Processing Guide for Kodak i600 Series Scanners, A-61504

• User’s Guide for Kodak i600 Series Scanners, A-61500

• Quick Tips Guide for Kodak i600 Series Scanners, A-61501

Kodak i200 Series Scanners

• User’s Guide for the Kodak i200 Series Scanners, A-61167

Kodak i100 Series Scanners

• User’s Guide for the Kodak i100 Series Scanners, A-61514

• Image Processing Guide for Kodak i100 Series Scanners, A-61517

• Quick Tips Guide for Kodak i100 Series Scanners, A-61515

Kodak i30 and i40 Scanners

• User’s Guide for the Kodak i30 and i40 Scanners, A-61512

• Quick Tips Guide for Kodak i30 and i40 Scanners, A-61526

System requirements The PC which will be used to scan images must meet the system

requirements for the scanner as documented in the Installation

Planning Guide or User’s Guide for your scanner.

•Operating systems — Windows 98SE, Windows Me, Windows

2000, Windows XP, Windows NT (for Kodak i800 Series Scanners

only)

• TWAIN Datasource

Installation

procedures

To install:

• Be sure you are logged into an account with ADMIN privileges.

• Insert the CD in the CD drive.

- If you have Auto-run enabled, the installation will begin

automatically.

- If not, navigate to the setup.exe file on the CD to launch the

installation.

4A-61506 September 2006

The main window Following is a description of the menu options on the Brightness and

Contrast Control main window. See the section entitled, “Using the

Brightness and Contrast Control” for procedures on how to use this

software.

File menu The File menu provides the following options:

Open Image — displays the Open Image File dialog box, which allows

you to open a previously saved uncorrected image from this

application. Only TIFF files can be opened with this application.

Save Uncorrected Image — displays the Save Image File dialog box,

which allows you to save the uncorrected image to disk as a color TIFF

file with a .tif extension. When Save Uncorrected Image is selected, it

saves the image which was captured using the Acquire option. This

image represents an image with the null color table.

Save Corrected Image — displays the Save Image File dialog box,

which allows you to save the corrected image to disk as a color TIFF or

JPEG file. When Save Corrected Image is selected, it saves the image

that is displayed on the right-side of the main window. This image

represents what the scanner will produce when using any color table

created with this image.

Acquire — used to scan and capture the starting null table image.

Select TWAIN Source — displays the Select Source dialog box which

allows you to choose the TWAIN Source for the scanner you will be

using.

DPI — allows you to select the resolution for the color image you will

acquire from the scanner.

Exit — closes the application.

A-61506 September 2006 5

View menu The View menu provides the following options:

Zoom 1/4 — displays the image at one quarter of the original size.

Zoom 1/2 — displays the image at one half of the original size.

Zoom 1:1 — displays the image at the original size.

Zoom 2:1 — displays the image at twice the original size.

Zoom 4:1 — displays the image at four times the original size.

Toolbar — displays/hides the toolbar. The toolbar buttons correspond

to commonly used menu options.

Icon Description

Open Image — displays the Open Image File dialog box, which

allows you to open a previously saved image from this

application.

Load Color Tables — displays the Open Color Table dialog box,

which allows you to open the color table you want to use.

Save Color Tables — displays the Save Color Table dialog box,

which allows you to save the custom color table which, when

used, will render an image that matches the image currently

displayed on the right-side of the main window. The color table

will be saved with an .ekct extension.

Save Uncorrected Image — displays the Save Image File

dialog box, which allows you to save the uncorrected image to

disk as a color TIFF file with a .tif extension.

Zoom 1/4 — displays the image at one quarter of the original

size.

Zoom 1/2 — displays the image at one half of the original size.

Zoom 1:1 — displays the image at the original size.

6A-61506 September 2006

Status bar — displays the X and Y coordinates of the current location

within the displayed image, the RGB values, the name of the color table

currently being applied to the original image (displayed on the left side

of the main window) and the scanner used to acquire the starting

original.

Using RGB values will help you to compare and analyze images.

Icon Description

Zoom 2:1 — displays the image at twice the original size.

Zoom 4:1 — displays the image at four times the original size.

Brightness/Contrast Tool — displays the Brightness and

Contrast dialog box which allows you to adjust the brightness

and contrast values while comparing the original image (on the

left) to the result (on the right).

Help — displays the Brightness and Contrast Control software

version number.

A-61506 September 2006 7

Color Tables menu The Color Tables menu provides the following options:

Null — when selected, will load the Null color table into the Brightness

and Contrast Control.

Load... — displays the Open Color Table dialog box which allows you

to select the color table you want to use.

Save... — displays the Save Color Table dialog box, which allows you

to save the custom color table which, when used, will render an image

that matches the image currently displayed on the right-side of the

Brightness and Contrast Control main window. The color table will be

saved with an .ekct extension.

Install to TWAIN... — places a copy of the custom color table into the

default directory used by the TWAIN Datasource

(C:\“windows”\twain_32\kodak\kds_“scanner”\ColorTables\”scanner”).

Install to ISIS... — places a copy of the custom color table into the

default directory used by the ISIS Device Driver

(C:\”windows”\pixtran\ColorTbl\“scanner”).

Delete... — displays the Delete Color Table dialog box which allows

you to delete custom color tables from your hard drive.

Delete from TWAIN... — deletes the custom color table from the

default directory used by the TWAIN Datasource

(C:\“windows”\twain_32\kodak\kds_“scanner”\ColorTables\”scanner”).

Delete from ISIS... — deletes the custom color table from the default

directory used by the ISIS Device Driver

(C:\”windows”\pixtran\ColorTbl\“scanner”).

NOTE: Using any Delete option permanently deletes the selected file

from your hard drive and cannot be retrieved from the recycle

bin. Once deleted, this file cannot be restored using this tool.

8A-61506 September 2006

Tools menu The Tools menu provides the following options:

Brightness and Contrast — displays the Brightness and Contrast

dialog box which allows you to adjust the brightness and contrast

values while comparing the original image on the left side of the

Brightness and Contrast Control main window to the resultant image on

the right side.

Help menu Displays the Brightness and Contrast Control software version number.

A-61506 September 2006 9

Creating a custom

color table

After you have reviewed the “Before you begin” section, you will be

ready to start using the Brightness and Contrast Control.

Using a Kodak default

color table as a starting

point

Before you create a custom color table, it is recommended that you

scan a representative group of documents and run this group of

documents with each of the Kodak default color tables. Analyze these

images to determine if any of the default color tables meet your needs.

If not, you may want to choose the color table which is closest to

meeting your needs. This default color table would be a good table to

use as a starting point to create your custom color table.

1. Open the Brightness and Contrast Control application. The main

window will be displayed.

2. Select File>Select TWAIN Source. The Select Source dialog box

will be displayed.

3. Highlight the desired source and click Select.

4. From the File menu select File>DPI and choose the resolution

which you will use when capturing color images in your production

environment.

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