Epson 660 Uživatelský manuál stáhnout pdf (Strana 57)

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THRESHOLD TAB

The Threshold tool is very useful when you scan line-art images or scan documents for OCR use. You may

use this function to adjust the quality of line art images or eliminate unwanted dots in the document to

improve the accuracy of recognition.

Note: This function is only applicable when you select Line Art as the Image Type.

The x-axis in the histogram represents the brightness level of the pixels in

the image (from 0 to 255, from left to right). The y-axis represents the

quantity of pixels.

To adjust the threshold value, drag the triangle below the histogram or enter

the threshold value in the Threshold entry box directly. For example:

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 91 92

Electronic User’s Manual 1
Quick Start 3
Using the Scan Button 4
Using EPSON Scan Tool 7
CONTROL WINDOW 9
PREVIEW WINDOW 11
JOB LIST WINDOW 14
The Console Mode 16
The Control Window 17
The Scan Setting Macro 19
Photo for Office 20
The Settings Window 21
THE OA TAB 22
Options for “Scan to File” 23
Options for “Scan to Printer” 23
BUTTONS) 24
THE MACRO TAB 25
Loading a customized macro 26
THE ADVANCED TAB 27
Auto functions 27
The Preview Window 29
Rulers’ Operation 30
Frame Tools 30
Trash Can 32
The Image Adjustment Window 33
Color Wizard Mode 34
DENSITY TAB 35
EXPOSURE TAB 36
CONTRAST TAB 37
SHARPNESS TAB 38
SATURATION TAB 39
Color Matching Mode 40
Output Intent 41
Standard Mode 42
COMBO TAB 43
BRIGHTNESS AND CONTRAST TAB 45
HUE AND SATURATION TAB 46
COLOR BALANCE TAB 48
CURVE TAB 50
Click to add a new point 52
LEVEL TAB 53
THRESHOLD TAB 57
The Jobs List window 59
Operations on the Jobs Sheet 61
Button Bar 62
Getting Help 63
Shortcuts 64
Problems and Solutions 65
What should I do? 66
Uninstallation Problems 67
Operation problems 71
How to rotate image? 73
How to apply advanced skills? 73
Contacting Customer Support 74
For users in the Middle East 75
Telephone: +971 4 351 7777 76
Fax: +971 4 351 6617 76
For users in Scandinavia 77
For users in South Africa 78
For users in Australia 79
For users in Singapore 80
For users in Thailand 81
For users in Indonesia 81
EPSON Support Center 82
For users in Hong Kong 83
For users in Malaysia 84
For users in India 85
For users in the Philippines 86
Technical Specifications 87
Scanning 88
Electrical 89
Environmental 90
Standards and Approvals 90
USB Interface 91
Initialization Methods 91
Appendix 92

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