Difference between pages "Thumbnails" and "File:13-4-EpoxyCleanup.jpg"

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'''Thumbnails''' are reduced-size versions of pictures, serving the same role for images as a normal text index does for words.
 
 
== [[Windows]] ==
 
 
See [[Thumbs.db]].
 
 
== [[Windows]] Vista ==
 
 
''See [[Vista thumbcache]]''
 
 
Thumbs.db no longer exists in Vista. This data has been moved to ''\Users\\AppData\Local\Microsoft\Windows\Explorer''
 
 
[[Windows]] Vista will save thumbnails for files on a mounted encrypted file systems (except [[Windows Encrypted File System | EFS]]).
 
 
== KDE & GNOME ==
 
 
KDE and GNOME are popular desktop environments for [[Linux]] and [[UNIX]] platforms. They are storing thumbnails in ''~/.thumbnails''.
 
 
Example thumbnail in GNOME:
 
 
<pre>
 
$ hachoir-metadata .thumbnails/normal/0d97afdc637ac86d75d13e72172dc77c.png
 
Metadata:
 
- Image width: 128 pixels
 
- Image height: 122 pixels
 
- Bits/pixel: 24
 
- Pixel format: RGB
 
- Compression rate: 1.6x
 
- Compression: deflate
 
- Producer: GNOME::ThumbnailFactory
 
- Comment: Thumb::Image::Width=779
 
- Comment: Thumb::Image::Height=744
 
- Comment: Thumb::URI=file:///media/truecrypt1/123.jpg
 
- Comment: Thumb::MTime=1216153400
 
- MIME type: image/png
 
- Endian: Big endian
 
</pre>
 
 
GNOME will save thumbnails for files on mounted encrypted filesystems.
 
 
Example thumbnail in KDE:
 
 
<pre>
 
$ hachoir-metadata .thumbnails/normal/2e4bc7bf05bd57e19c6f2a01cf4a8f71.png
 
Metadata:
 
- Image width: 96 pixels
 
- Image height: 128 pixels
 
- Bits/pixel: 24
 
- Pixel format: RGB
 
- Compression rate: 1.6x
 
- Compression: deflate
 
- Producer: KDE Thumbnail Generator
 
- Comment: Thumb::MTime=1236952299
 
- Comment: Thumb::Mimetype=image/jpeg
 
- Comment: Thumb::Size=827837
 
- Comment: Thumb::URI=file:///home/fuf/10032009(002).jpg
 
- MIME type: image/png
 
- Endian: Big endian
 
</pre>
 
 
== External Links ==
 
 
=== Non-English ===
 
 
* [http://itdefence.ru/content/articles/Thumbnails.Suhanov/ Использование централизованных баз данных экскизов для исследования графических файлов на зашифрованных разделах], ITDefence, 2009
 

Latest revision as of 23:13, 7 August 2013