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From "Damjan Jovanovic (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SANSELAN-70) Incorrect PhysicalWidthDpi for JPEG image with resolution specified in dots per millimeter
Date Wed, 04 Apr 2012 04:49:20 GMT

     [ https://issues.apache.org/jira/browse/SANSELAN-70?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Damjan Jovanovic resolved SANSELAN-70.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 1.0

I've applied the patch to the latest SVN.
Thank you for your contribution!

                
> Incorrect PhysicalWidthDpi for JPEG image with resolution specified in dots per millimeter
> ------------------------------------------------------------------------------------------
>
>                 Key: SANSELAN-70
>                 URL: https://issues.apache.org/jira/browse/SANSELAN-70
>             Project: Commons Sanselan
>          Issue Type: Bug
>          Components: Format: JPEG
>    Affects Versions: 0.97
>         Environment: N/A
>            Reporter: Tars Joris
>              Labels: patch
>             Fix For: 1.0
>
>         Attachments: Main.java, example_ppi.jpg, example_ppmm.jpg, jpeg-dpi.patch.txt
>
>
> The value of physical with DPI is incorrect for JPEG images, which express their resolution
in dots per millimeter.
> Two images are attached:
> - example_ppi.jpg: Normal image, with resolution specified in dots per inch (72 pixels/in)
> - example_ppmm.jpg: Same image, but with resolution specified in dots per millimeter
(2.8 pixels/mm)
> When running the attached code, the output is
> {code}
> example_ppi.jpg
> getPhysicalWidthDpi: 72
> getPhysicalHeightDpi: 72
> example_ppmm.jpg
> getPhysicalWidthDpi: 11
> getPhysicalHeightDpi: 71
> {code}
> While you'd expect the value 71 for getPhysicalWidthDpi for the second image.

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