Loosing all Metadata when editing

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Loosing all Metadata when editing

Max Bedacht
I am loosing all metadata when I edit an image with the built-in editor or Showfoto and do a save-as.

I have processed the images as follows:

Convert from .cr2 to .png using the Batch Raw Converter tool (after this the metadata is still there);
Geotag (after this the metadata is still there);
Edit using F4 or Showfoto - I have done free-rotate and color adjust, and just color adjust)
Save as .png with a new name.

After the save all the metadata is gone.
I get an error if I try to import the metadata from the original converted .png

I have done the editing sequence using Photoshop Elements 4.0 Editor (installed with WINE) and with this the metadata is preserved.

Has anybody run into this?

DigiKam 1.2.0
Showfoto 1.2.0
Ubuntu 10.4




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Re: Loosing all Metadata when editing

Gilles Caulier-4
2010/7/25 Max Bedacht <[hidden email]>:

> I am loosing all metadata when I edit an image with the built-in editor or
> Showfoto and do a save-as.
>
> I have processed the images as follows:
>
> Convert from .cr2 to .png using the Batch Raw Converter tool (after this the
> metadata is still there);
> Geotag (after this the metadata is still there);
> Edit using F4 or Showfoto - I have done free-rotate and color adjust, and
> just color adjust)
> Save as .png with a new name.
>
> After the save all the metadata is gone.
> I get an error if I try to import the metadata from the original converted
> .png
>
> I have done the editing sequence using Photoshop Elements 4.0 Editor
> (installed with WINE) and with this the metadata is preserved.
>
> Has anybody run into this?

Yes, me too. I processed around 130 RAW photo in editor (ARW to PNG),
and sometimes, metadata are lost.

It's not reproducible each time.

I take a look in source code and PNG writter has the right code to
backup metadata with Exiv2.

I suspect something like this : i use a tool in editor and metadata
are lost at this time, but still displayed in right side bar. You see
the lossy action after to save and take a look back in target file.

I process my RAW files like this : Raw import tool, ratio crop, free
rotation, and sometimes some color correction tools, as
B&W. I don't use CM there.

As developer, i use all code from trunk, kdegraphics/libs, digiKam and
exiv2. kipi-plugins is not used there.

Can you confirm this ?

Another point : can you reproduce this dysfunction if you save your
RAW image in TIFF or JPEG ?

It can be interresting to see all debug messages from a console, when
you process a raw image.

I recommend to open a new file in bugzilla about.

Gilles Caulier

>
> DigiKam 1.2.0
> Showfoto 1.2.0
> Ubuntu 10.4
>
>
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
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Re: Loosing all Metadata when editing

Max Bedacht
I'm not sure what code bases are being used (I am using a standard Ubuntu 10.4 installation (32 bit) with DigiKam installed with the Synaptic Package Manager).

There seems to be some irregularity with the problem - not occurring the same way all the time - but since I have been verifying step by step I have not isolated anything other than I described in the first message.

I did discover that if I save as .jpg after doing the edits that the metadata is preserved. I have been using this as a workaround and it has been stable.

I'm going to try other formats and look into filing a report in bugzilla.

Max Bedacht



On Mon, Jul 26, 2010 at 3:56 AM, Gilles Caulier <[hidden email]> wrote:
2010/7/25 Max Bedacht <[hidden email]>:
> I am loosing all metadata when I edit an image with the built-in editor or
> Showfoto and do a save-as.
>
> I have processed the images as follows:
>
> Convert from .cr2 to .png using the Batch Raw Converter tool (after this the
> metadata is still there);
> Geotag (after this the metadata is still there);
> Edit using F4 or Showfoto - I have done free-rotate and color adjust, and
> just color adjust)
> Save as .png with a new name.
>
> After the save all the metadata is gone.
> I get an error if I try to import the metadata from the original converted
> .png
>
> I have done the editing sequence using Photoshop Elements 4.0 Editor
> (installed with WINE) and with this the metadata is preserved.
>
> Has anybody run into this?

Yes, me too. I processed around 130 RAW photo in editor (ARW to PNG),
and sometimes, metadata are lost.

It's not reproducible each time.

I take a look in source code and PNG writter has the right code to
backup metadata with Exiv2.

I suspect something like this : i use a tool in editor and metadata
are lost at this time, but still displayed in right side bar. You see
the lossy action after to save and take a look back in target file.

I process my RAW files like this : Raw import tool, ratio crop, free
rotation, and sometimes some color correction tools, as
B&W. I don't use CM there.

As developer, i use all code from trunk, kdegraphics/libs, digiKam and
exiv2. kipi-plugins is not used there.

Can you confirm this ?

Another point : can you reproduce this dysfunction if you save your
RAW image in TIFF or JPEG ?

It can be interresting to see all debug messages from a console, when
you process a raw image.

I recommend to open a new file in bugzilla about.

Gilles Caulier
>
> DigiKam 1.2.0
> Showfoto 1.2.0
> Ubuntu 10.4
>
>
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users


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Re: Loosing all Metadata when editing

Gilles Caulier-4
Any debug trace if you run digiKam on a console ?

Gilles Caulier

2010/7/26 Max Bedacht <[hidden email]>:

> I'm not sure what code bases are being used (I am using a standard Ubuntu
> 10.4 installation (32 bit) with DigiKam installed with the Synaptic Package
> Manager).
>
> There seems to be some irregularity with the problem - not occurring the
> same way all the time - but since I have been verifying step by step I have
> not isolated anything other than I described in the first message.
>
> I did discover that if I save as .jpg after doing the edits that the
> metadata is preserved. I have been using this as a workaround and it has
> been stable.
>
> I'm going to try other formats and look into filing a report in bugzilla.
>
> Max Bedacht
>
>
>
> On Mon, Jul 26, 2010 at 3:56 AM, Gilles Caulier <[hidden email]>
> wrote:
>>
>> 2010/7/25 Max Bedacht <[hidden email]>:
>> > I am loosing all metadata when I edit an image with the built-in editor
>> > or
>> > Showfoto and do a save-as.
>> >
>> > I have processed the images as follows:
>> >
>> > Convert from .cr2 to .png using the Batch Raw Converter tool (after this
>> > the
>> > metadata is still there);
>> > Geotag (after this the metadata is still there);
>> > Edit using F4 or Showfoto - I have done free-rotate and color adjust,
>> > and
>> > just color adjust)
>> > Save as .png with a new name.
>> >
>> > After the save all the metadata is gone.
>> > I get an error if I try to import the metadata from the original
>> > converted
>> > .png
>> >
>> > I have done the editing sequence using Photoshop Elements 4.0 Editor
>> > (installed with WINE) and with this the metadata is preserved.
>> >
>> > Has anybody run into this?
>>
>> Yes, me too. I processed around 130 RAW photo in editor (ARW to PNG),
>> and sometimes, metadata are lost.
>>
>> It's not reproducible each time.
>>
>> I take a look in source code and PNG writter has the right code to
>> backup metadata with Exiv2.
>>
>> I suspect something like this : i use a tool in editor and metadata
>> are lost at this time, but still displayed in right side bar. You see
>> the lossy action after to save and take a look back in target file.
>>
>> I process my RAW files like this : Raw import tool, ratio crop, free
>> rotation, and sometimes some color correction tools, as
>> B&W. I don't use CM there.
>>
>> As developer, i use all code from trunk, kdegraphics/libs, digiKam and
>> exiv2. kipi-plugins is not used there.
>>
>> Can you confirm this ?
>>
>> Another point : can you reproduce this dysfunction if you save your
>> RAW image in TIFF or JPEG ?
>>
>> It can be interresting to see all debug messages from a console, when
>> you process a raw image.
>>
>> I recommend to open a new file in bugzilla about.
>>
>> Gilles Caulier
>> >
>> > DigiKam 1.2.0
>> > Showfoto 1.2.0
>> > Ubuntu 10.4
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Digikam-users mailing list
>> > [hidden email]
>> > https://mail.kde.org/mailman/listinfo/digikam-users
>> >
>> >
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
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Re: Loosing all Metadata when editing

Max Bedacht
When I run Digikam in a terminal window there is a lot of output to the window. Is that the debug info that you mean? I'm not too familiar with this kind of stuff.

I have been trying to isolate conditions where the problem is occurring and I am getting bogged down in too many possibilities.

I have converted to ppm and png and dng and get different results. I have used the Digikam converters and stand alone and seem to get different results.

I am going to try to build a matrix of conversions x results and I will post them when I can.

Max Bedacht


 

On Mon, Jul 26, 2010 at 9:28 AM, Gilles Caulier <[hidden email]> wrote:
Any debug trace if you run digiKam on a console ?

Gilles Caulier

2010/7/26 Max Bedacht <[hidden email]>:
> I'm not sure what code bases are being used (I am using a standard Ubuntu
> 10.4 installation (32 bit) with DigiKam installed with the Synaptic Package
> Manager).
>
> There seems to be some irregularity with the problem - not occurring the
> same way all the time - but since I have been verifying step by step I have
> not isolated anything other than I described in the first message.
>
> I did discover that if I save as .jpg after doing the edits that the
> metadata is preserved. I have been using this as a workaround and it has
> been stable.
>
> I'm going to try other formats and look into filing a report in bugzilla.
>
> Max Bedacht
>
>
>
> On Mon, Jul 26, 2010 at 3:56 AM, Gilles Caulier <[hidden email]>
> wrote:
>>
>> 2010/7/25 Max Bedacht <[hidden email]>:
>> > I am loosing all metadata when I edit an image with the built-in editor
>> > or
>> > Showfoto and do a save-as.
>> >
>> > I have processed the images as follows:
>> >
>> > Convert from .cr2 to .png using the Batch Raw Converter tool (after this
>> > the
>> > metadata is still there);
>> > Geotag (after this the metadata is still there);
>> > Edit using F4 or Showfoto - I have done free-rotate and color adjust,
>> > and
>> > just color adjust)
>> > Save as .png with a new name.
>> >
>> > After the save all the metadata is gone.
>> > I get an error if I try to import the metadata from the original
>> > converted
>> > .png
>> >
>> > I have done the editing sequence using Photoshop Elements 4.0 Editor
>> > (installed with WINE) and with this the metadata is preserved.
>> >
>> > Has anybody run into this?
>>
>> Yes, me too. I processed around 130 RAW photo in editor (ARW to PNG),
>> and sometimes, metadata are lost.
>>
>> It's not reproducible each time.
>>
>> I take a look in source code and PNG writter has the right code to
>> backup metadata with Exiv2.
>>
>> I suspect something like this : i use a tool in editor and metadata
>> are lost at this time, but still displayed in right side bar. You see
>> the lossy action after to save and take a look back in target file.
>>
>> I process my RAW files like this : Raw import tool, ratio crop, free
>> rotation, and sometimes some color correction tools, as
>> B&W. I don't use CM there.
>>
>> As developer, i use all code from trunk, kdegraphics/libs, digiKam and
>> exiv2. kipi-plugins is not used there.
>>
>> Can you confirm this ?
>>
>> Another point : can you reproduce this dysfunction if you save your
>> RAW image in TIFF or JPEG ?
>>
>> It can be interresting to see all debug messages from a console, when
>> you process a raw image.
>>
>> I recommend to open a new file in bugzilla about.
>>
>> Gilles Caulier
>> >
>> > DigiKam 1.2.0
>> > Showfoto 1.2.0
>> > Ubuntu 10.4
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Digikam-users mailing list
>> > [hidden email]
>> > https://mail.kde.org/mailman/listinfo/digikam-users
>> >
>> >
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
_______________________________________________
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[hidden email]
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Re: Loosing all Metadata when editing

Gilles Caulier-4
2010/7/26 Max Bedacht <[hidden email]>:
> When I run Digikam in a terminal window there is a lot of output to the
> window. Is that the debug info that you mean? I'm not too familiar with this
> kind of stuff.

yes it is. Also run kdebugdialog first and set on all digiKam/Showfoto namespace

>
> I have been trying to isolate conditions where the problem is occurring and
> I am getting bogged down in too many possibilities.
>
> I have converted to ppm and png and dng and get different results. I have
> used the Digikam converters and stand alone and seem to get different
> results.

I can reproduce this problem with digiKam Image Editor, not BM or
kipi-batch tool.

Gilles
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