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diva.js: A web-based document viewer for high-r...
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Wendy Liu
July 28, 2012
Programming
0
340
diva.js: A web-based document viewer for high-resolution images
Presented at the SIMSSA workshop held at McGill University.
Wendy Liu
July 28, 2012
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Transcript
A web-based document viewer for high-resolution images A web-based document
viewer for high-resolution images Wendy Liu Wendy Liu 1 / 41
Outline Outline 2 / 41 What it is What it
is How it works How it works Image manipulation features Image manipulation features
What it is What it is 3 / 41
Manuscript: Salzinnes Antiphonal Manuscript: Salzinnes Antiphonal 4 / 41
High resolution High resolution 5 / 41
Preserve document structure (scrolling) Preserve document structure (scrolling) 6 /
41
7 / 41 Fast and easy to use Fast and
easy to use
8 / 41 Free tool Free tool
9 / 41
10 / 41 Distribution? Distribution?
10 / 41 TIFF, ~30 megapixels (~180 MB) per photo
TIFF, ~30 megapixels (~180 MB) per photo TIFF, ~30 megapixels (~180 MB) per photo TIFF, ~30 megapixels (~180 MB) per photo
12 / 41 180 MB × 479 images ≈ 86
GB 180 MB × 479 images ≈ 86 GB
13 / 41 Enter Diva.js Enter Diva.js
14 / 41 From manuscript ... From manuscript ...
15 / 41 To browser-based document viewer. To browser-based document
viewer.
16 / 41 Zooming in and out Zooming in and
out
17 / 41 Grid view Grid view
18 / 41 Image manipulation Image manipulation
19 / 41 Extremely fast Extremely fast
20 / 41 Selective downloading Selective downloading
21 / 41 How it works How it works
22 / 41 Tiled images (JPEG2000 or pyramidal TIFF) Tiled
images (JPEG2000 or pyramidal TIFF)
23 / 41 Multiple resolutions in one file Multiple resolutions
in one file
24 / 41 Image server: IIPImage Image server: IIPImage
25 / 41 Setup frontend scripts Setup frontend scripts
26 / 41 Demo Demo http://coltrane.music.mcgill.ca/salzinnes/experiments/diva-cci-tif/
27 / 41 New feature: plugin system New feature: plugin
system
28 / 41 Download plugin Download plugin
29 / 41 Image manipulation plugin Image manipulation plugin
30 / 41 Canvas: HTML5 feature Canvas: HTML5 feature
31 / 41 Canvas: HTML5 feature Canvas: HTML5 feature
32 / 41
33 / 41
34 / 41 Working with large images: slow. Working with
large images: slow.
35 / 41 More pixels → more operations More pixels
→ more operations
36 / 41 Solution: thumbnail preview. Solution: thumbnail preview.
37 / 41 MIT license MIT license
38 / 41 Download from ddmal.music.mcgill.ca/diva Download from ddmal.music.mcgill.ca/diva
39 / 41 Development coordinated by Development coordinated by Ichiro
Fujinaga (DDMAL) Andrew Hankinson (DDMAL) Laurent Pugin (Swiss RISM) Ichiro Fujinaga (DDMAL) Andrew Hankinson (DDMAL) Laurent Pugin (Swiss RISM)
40 / 41 Sponsored by Sponsored by Swiss National Science
Foundation Swiss National Science Foundation
41 / 41 Thanks. Thanks.