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Readability ofScanned Books in Digital Libraries
Alex Quinn, Chang Hu, Takeshi Arisaka, Anne Rose, Ben BedersonUniversity of Maryland, College ParkHuman Computer Interaction Lab
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Data based on data pulled in March 2008 using Google AnalyticsICD
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Together, 800x600 and 1024x768 account for 55% of ICDL visitors
Data based on data pulled in March 2008 using Google AnalyticsICD
L vi
sito
rs’s
cree
n re
solu
tions
1024x768
800x600
1280
x768
1280x768
1280x768
1440x900
1280x1024
1680x10501300x1300
Other
Together, 800x600 and 1024x768 account for 55% of ICDL visitors
800x600 (mono)1200x900 (color)
DemosIf network connection working:
ClearText demoPopoutText demoSkip backup slides
Else:Proceed to backup slides
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Study
ExperimentRead ½ book with…
Physical bookStandardClearTextPopoutText
Same authorSimilar style27 adults
EvaluateRate (after each)
Easy to seeCan read quicklyEasy to manipulateKeeps author’s intentAttractive
Rank (at end)same
Surprises
61% preferred ≥1 of the new methods over the physical book for ≥1 measure
37% for ease of manipulation33% for legibility
Cited inherent limitations in booksPages flop aroundInconvenient “zoom” capability
Subjective ratings
Error bars show 5% confidence intervalsAll five measures had main effects with p≤0.01 in RM-ANOVA
Easy tosee
Can readquickly
Easy toManipulate
Preservesauthor’screativeintent
AttractiveBad
Good
Practical Issues
RightsTranscriptionLimitations of image processing
SlowRequires some human correction
Very difficult text examples
International Children’s Digital Librarywww.childrenslibrary.org
Human Computer Interaction LabUniversity of Maryland, College Park
www.cs.umd.edu/hcil
Alex [email protected]
![Enhancing Readability of Scanned Picture Booksreadability than plain scanned images of the same book pages. As for computer-generated text, it has also been reported in [4] that readers](https://img.dokumen.tips/doc/110x75/5e9d0a25cfa1300258616078/enhancing-readability-of-scanned-picture-readability-than-plain-scanned-images-of.jpg)
