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From "Damjan Jovanovic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IMAGING-49) ExifRewriter.updateExifMetadataLossless corrupts maker notes
Date Thu, 09 Nov 2017 01:49:02 GMT

    [ https://issues.apache.org/jira/browse/IMAGING-49?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16245093#comment-16245093
] 

Damjan Jovanovic commented on IMAGING-49:
-----------------------------------------

Please use the current snapshot. It should be fixed there.

> ExifRewriter.updateExifMetadataLossless corrupts maker notes
> ------------------------------------------------------------
>
>                 Key: IMAGING-49
>                 URL: https://issues.apache.org/jira/browse/IMAGING-49
>             Project: Commons Imaging
>          Issue Type: Bug
>         Environment: 0.97-incubator
>            Reporter: Lulu winlumski
>            Priority: Critical
>             Fix For: 1.0
>
>         Attachments: SanselanExifWriter.java, modified.jpg, original.jpg
>
>
> rewriter.updateExifMetadataLossless(jpeg, os, outputSet); 
> lead to loss of maker notes in the attached files.
> See attached files for details.
> $ exiftool -Makernotes:all original.jpg > original.txt
> $ exiftool -Makernotes:all modified.jpg > modified.txt
> $ diff -u original.txt modified.txt 
> --- original.txt	2009-10-21 02:14:11.000000000 +0200
> +++ modified.txt	2009-10-21 02:14:15.000000000 +0200
> @@ -1,66 +1,8 @@
> -Focal Type                      : Zoom
> -Focal Plane X Size              : 5.84 mm
> -Focal Plane Y Size              : 4.39 mm
> -Canon Image Type                : IMG:DIGITAL IXUS 60 JPEG
> -Canon Firmware Version          : Firmware Version 1.00
> +Canon Image Type                : 
> +Canon Firmware Version          : 
>  File Number                     : 100-0877
>  Owner Name                      : 
>  Canon Model ID                  : PowerShot SD600 / Digital IXUS 60 / IXY Digital 70
>  Thumbnail Image Valid Area      : 0 0 0 0
>  Date Stamp Mode                 : Off
> -My Color Mode                   : Off
>  Firmware Revision               : 1.00 rev 1.00
> -Macro Mode                      : Normal
> -Self Timer                      : Off
> -Quality                         : Superfine
> -Canon Flash Mode                : Red-eye reduction (Auto)
> -Continuous Drive                : Single
> -Focus Mode                      : Single
> -Record Mode                     : JPEG
> -Canon Image Size                : Large
> -Easy Mode                       : Full auto
> -Digital Zoom                    : None
> -Contrast                        : Normal
> -Saturation                      : Normal
> -Sharpness                       : 0
> -Camera ISO                      : Auto
> -Metering Mode                   : Evaluative
> -Focus Range                     : Auto
> -AF Point                        : Auto AF point selection
> -Canon Exposure Mode             : Easy
> -Lens Type                       : Unknown (-1)
> -Long Focal                      : 17.4 mm
> -Short Focal                     : 5.8 mm
> -Focal Units                     : 1000
> -Max Aperture                    : 2.8
> -Min Aperture                    : 5.6
> -Flash Bits                      : (none)
> -Focus Continuous                : Single
> -AE Setting                      : Normal AE
> -Zoom Source Width               : 2816
> -Zoom Target Width               : 2816
> -Spot Metering Mode              : Center
> -Manual Flash Output             : n/a
> -Auto ISO                        : 148
> -Base ISO                        : 100
> -Measured EV                     : 4.19
> -Target Aperture                 : 2.8
> -Target Exposure Time            : 1/60
> -Exposure Compensation           : 0
> -White Balance                   : Auto
> -Slow Shutter                    : Off
> -Shot Number In Continuous Burst : 0
> -Optical Zoom Code               : 0
> -Flash Guide Number              : 0
> -Flash Exposure Compensation     : 0
> -Auto Exposure Bracketing        : Off
> -AEB Bracket Value               : 0
> -Control Mode                    : Camera Local Control
> -Focus Distance Upper            : 2.56
> -Focus Distance Lower            : 0
> -Bulb Duration                   : 0
> -Camera Type                     : Compact
> -Auto Rotate                     : Rotate 90 CW
> -ND Filter                       : Off
> -Self Timer 2                    : 0
> -Flash Output                    : 0
> This makes the library utterly useless for me. You can just as well use MediaUtil which
has a smaller footprint and a (somewhat) cleaner API.    



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