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014055 cover to print 11/8/04 12:39 PM Page 1
iNnovation Series Scanners
Brightness and
Contrast Control
Reference
EASTMAN KODAK COMPANY
Document Imaging
Rochester, New York 14650
Guide
www.kodak.com/go/docimaging
Kodak is a trademark of Eastman Kodak
Company.
A-61506 1/2004
COMMERCIAL
A-61506
CAT No. 137 0337
IMAGING Part No. 9E3722
©Eastman Kodak Company, 2004
Printed in U.S.A. CAT No. 137 0337
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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 me
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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
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Supporting Kodak i800 Series Scanners • Image Processing Guide for Kodak i800 Series Scanners, A-61510 documentation • 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 K
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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 I
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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
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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. Status bar — displays the X and Y coordinates of the current loca
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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 Brightnes
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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. 8 A-61506 September 2006
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Creating a custom After you have reviewed the “Before you begin” section, you will be ready to start using the Brightness and Contrast Control. color table Using a Kodak default Before you create a custom color table, it is recommended that you scan a representative group of documents and run this group of color table as a starting documents with each of the Kodak default color tables. Analyze these point images to determine if any of the default color tables meet your needs. If not, you m
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5. From the Brightness and Contrast Control main window, select File>Acquire. 6. Feed the document you have selected to use as a starting point to create your custom color table. When completed, the uncorrected scanned image will appear in both the left and right sides of the main window. NOTE: This image may be saved and used for the creation of future color tables. 7. Select Color Tables>Load. The Open Color Table dialog box is displayed. 8. Highlight the color table that you determined
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12.Select Color Tables>Save. The Save Color Table dialog box will be displayed: 13.Enter a color table name in the Filename field and click Save. This custom color table will be saved in the directory shown in the Save Color Table dialog box and is available for download to your scanner to be used in production. NOTE: If you change the default directory path which appears in the Save Color Table dialog box, you may have to navigate to find this table during production. The scanner TWAIN d
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Using an Uncorrected 1. Open the Brightness and Contrast Control application. The main window will be displayed. image as a starting point 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. 5. Select File>Acquire. 6. Feed the document you have selected to use as a st
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10.Select Color Tables>Save. The Save Color Table dialog box will be displayed: 11. Enter a color table name in the Filename field and click Save. This custom color table will be saved in the directory shown in the Save Color Table dialog box and is available for download to your scanner to be used in production. NOTE: If you change the default directory path which appears in the Save Color Table dialog box, you may have to navigate to find this table during production. The scanner TWAIN
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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. 5. From the Brightness and Contrast Control main window, select File>Acquire. 6. Feed the document you have selected to use as a starting point to create your custom color table. When completed, the uncorrected scanned image will appear in both the left and right sides of the main window. 7. Select
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Using a previously IMPORTANT: You must use an uncorrected image as your starting point for any activity which will result in the creation of a captured image as a custom color table. If you do not choose an uncorrected starting point image the following message will be displayed, The origin of this image cannot be determined from the file! It may not have been originally scanned with NULL color tables, and is therefore not a valid image for use in this application. 1. Open the Brightness
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6. Click OK when the image displayed on the right side of the Brightness and Contrast Control main window is acceptable. NOTE: Selecting Cancel will undo any changes and restores the image on the right side of the Brightness and Contrast Control main window to match the original image (on the left side). 7. Select Color Tables>Save. The Save Color Table dialog box will be displayed: 8. Enter a color table name in the Filename field and click Save. This custom color table will be saved in t
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Verifying a custom Following are procedures for verifying a custom color table using the Scan Validation Tool. For detailed procedures on using the Scan color table using the Validation Tool see the Image Processing Guide for Kodak i800 Series Scan Validation Tool Scanners, A-61510 or the Image Processing Guide for Kodak i600 Series Scanners, A-61504. 1. Open the Scan Validation Tool. NOTE: Be sure Save Images to Files is checked. 2. From the Imaging tab, select the custom color table from
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Deleting a custom To delete a custom color table: color table 1. Open the Brightness and Contrast Control application. 2. Select Color Tables>Delete. The Delete Color Table dialog box will be displayed: 3. Select the color table you want to delete and click Delete. 4. The message, Are you sure you want to delete this color table? is displayed. Click Delete to confirm the deletion. NOTES: • Deleting a color table will permanently remove this file from your hard drive and cannot be retrieved fr
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Glossary Brightness — Brightness and Contrast Control uses a brightness scale from -50 (darkest) to +50 (lightest). Changing the Brightness value will effect all color pixels in the image uniformly making all colors in the entire image darker or lighter according to the values selected. Contrast — Brightness and Contrast Control uses a contrast scale from -50 (subtle) to +50 (sharp). As Contrast values become more positive, darks become darker, and lights become lighter in order to create
