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From "Nick Burch (JIRA)" <j...@apache.org>
Subject [jira] Created: (TIKA-442) Image extractors use inconsistent metadata keys and formats for common features
Date Wed, 16 Jun 2010 14:38:22 GMT
Image extractors use inconsistent metadata keys and formats for common features
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                 Key: TIKA-442
                 URL: https://issues.apache.org/jira/browse/TIKA-442
             Project: Tika
          Issue Type: Improvement
          Components: metadata, parser
    Affects Versions: 0.7
            Reporter: Nick Burch
            Priority: Minor


Currently Tika has a number of parsers for image formats, but the way they return their data
is inconsistent. For example:

Jpeg: "Image Width" = "420 pixels", "Data Precision" = "8 bits"
Gif: "width" = "420"
Png: "width" = "420", "IHDR" = ".... bitDepth = 8 ....."
Bmp: "width" = "420", "BitsPerSample" = "8 8 8"

I think that the common keys, such as width and height, should be returned in a consistent
format of key and value. If someone would like to suggest the namespace for this (maybe under
XMDPM), and the short or long form (eg 420 vs 420 pixels), then I'm happy to work up a patch
for this

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