Presentation of digital image processing at EOD workshop in regensburg, Germany. Presented on 2. 9. 2009 by Alenka Blatnik.

1. DIGITAL IMAGE PROCESSING FORUM
REGENSBURG 2. october 2009
Technical workshop
Alenka Blatnik (Bsc Graphics Engineering)

2. SCANNING process
Scanning factors
Printing the image
Type of scanner
Components
Adjusting the Scanning mode
scanned image
Scanning resolution
1

3. Type of scanners
?
Flatbed scanner
? principle
Digital camera
?
Mehatronical device
2

4. SCANNED images
Scanning mode
?
Cm Gm Bm
1 bit = 2 colours
Bit Depth
?
2 bits = 4 colours
24 bits = 16 million colors
?
Color Model RGB CMYK CIE LAB
Resolution² × Width × Bits per sample ÷ 8,192 =
?
File size File size (in kilobytes)
?
File format
3

5. Digital image processing in NUK
Software
Image manipulation: i2s BookRestorer
?
? Finer Reader 8
OCR: Abbyy
Functions and Tools
Deskew
? Lightning
? Eraser tool
?
Colour mode
? Contrast
? Crop Tool
?
Binarization
? ? correction
Geometrical Read tool
?
Results
Cm Gm
Bmahjhdenkja Bmahjhdenkja
yicslfclcjljcljcvvjv yicslfclcjljcljcvvjv
4

6. Digital workflow in NUK
JPEG 90
ODM Scanning Image manipulation
Book order
OCR
Gotic Typeface Latin Typeface
Server based OCR & PDF Local OCR & PDF
5

7. Difficulties with colour scanns
Lightning
Shading
6

8. IMAGE MANIPULATION (i2s BookRestorer)
Scanned Tools
pages
Functions
Image
7

9. OCR (ABBYY FineReader 8)
Croped
Text
pages
Edit
Working
page
8

10. Difficulties with ussing ABBYY OCR
Violet shading & Image rotation
Image rotation after OCR
Tonal value change
9

11. Difficulties with ussing ABBYY OCR
Text block deformation
Text block deformation after OCR
Image deformation after OCR
10

12. PDF (ISO 15930:2005)
PDF (PORTABLE DOCUMENT FORMAT) is a digital format for representing documents, whether they are
created natively in PDF, converted from other electronic formats, or digitised from paper or microform.
Use of PDF Files
Transfer Files
?
Proofing
?
Postscript Utility
?
? and Multimedia
Presentations
HTML Utility
?
Archiving
?
Forms
?
EDMS (Electronic Document Management System)
?
11

13. PDF/A (ISO 19005-1:2005)
PDF/A is a subset of PDF, obtained by leaving out PDF features not suited for long term archiving.
This is similar to the definition of the PDF/X subset for the printing and graphic arts.
PDF/A compatibility key elements
? content
No Multimedia
?Embedded fonts (TYPEFACE DIGITISATION!!!)
?Device-independent colourspaces
?Use of standards-based metadata (XML)
Sectors of Application for PDF/A
?Banks and Insurances
?Industry
?Publishers
? and Government
Public Sector
12

14. PDF/A (ISO 19005-1:2005)
Typeface digitisation
13

15. Colour theory 1
What is colour?
Device dependent colour models
RGB CMYK
Monitor
Printer
Scanner
Printing machine
Digital camera
14

16. Colour theory 2
Device independent colour model (CIE 1976 LAB)
ICC Colour management
Original book Scanner Monitor Colour consistency
use of
A A A ICC A
15

17. ICC Colour Management
ICC Workflow
?
MONITOR ?
SCANNER
?
Equipment ?
Equipment
?
Colourmeter ?
IT8 colour reference chart
?for monitors
ICC software ?for scanners
ICC software
16

18. Digitisation SUMMARY
Long - term digital preservation
Colour scanning mode
?
?managed workflow
ICC Colour
Use of PDF/A
? Cm
Embedded fonts
?
Digitisation for on screen viewing
Colour or grayscale scanning mode
?
Use of PDF
?
Cm Gm
? sheet turners
Use of Flash
http://ttpdownload.bl.uk/app_files/silverlight/default.html?id=CB4C06B9-02F4-49AF-80CE-540836464A46
Digitisation for printing and mobile phones
Binary scanning mode
?
Use of PDF
?
Bm
17

19. Mobile technology
Mobile phones Output format Readers
Palm
? Microsoft Word
? ?Reader
Mobipocet
Windows Mobile
? PDF
? Windows Reader
?
Symbian
? ? Reader
Tiny eBook
BlackBerry
? ? Book Reader
TequilaCat
OCR
Bm
Electronic paper (also: e-paper, electronic ink display)
Polymer material
?
Rolls of flat
? OCR Cm
? tochnology
Touch screen Bm
? support
Multimedia
http://www.youtube.com/watch?v=oq_2LiTxhls
http://www.youtube.com/watch?v=uQMBzXaCmqY
http://www.youtube.com/watch?v=oaykGqzZX4s
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20. Questions?