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Posted to dev@commons.apache.org by Farrukh Najmi <fa...@wellfleetsoftware.com> on 2012/07/02 23:33:25 UTC

[IMAGING] TagInfo and distinction between TagName and FieldName

Hi Guys,

I am new to the project so forgive me if the answer is obvious...

I am working with latest svn bits and the 
org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to 
only support the TagName column of Table 3 TIFF Rev. 6.0 Attribute 
Information Used in Exif in the Exif spec 
<http://www.exif.org/Exif2-2.PDF>. I need access to FieldName as it 
seems more suitable as a human-friendly identifier for the tag.

I think it would be ideal if TagInfo supports both TagName and 
FieldName. What does the dev team think? If there are not many -1s then 
I will file in RFE in JIRA.

Thanks for your input.

-- 
Regards,
Farrukh

Web: http://www.wellfleetsoftware.com

Re: [IMAGING] TagInfo and distinction between TagName and FieldName

Posted by Damjan Jovanovic <da...@gmail.com>.
On Tue, Jul 3, 2012 at 9:03 PM, Farrukh Najmi
<fa...@wellfleetsoftware.com> wrote:
> On 07/03/2012 01:56 PM, Damjan Jovanovic wrote:
>>
>> On Tue, Jul 3, 2012 at 3:48 PM, Farrukh Najmi
>> <fa...@wellfleetsoftware.com> wrote:
>>>
>>> On 07/02/2012 11:22 PM, Damjan Jovanovic wrote:
>>>>
>>>> On Mon, Jul 2, 2012 at 11:33 PM, Farrukh Najmi
>>>> <fa...@wellfleetsoftware.com> wrote:
>>>>>
>>>>> Hi Guys,
>>>>>
>>>>> I am new to the project so forgive me if the answer is obvious...
>>>>>
>>>>> I am working with latest svn bits and the
>>>>> org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to
>>>>> only
>>>>> support the TagName column of Table 3 TIFF Rev. 6.0 Attribute
>>>>> Information
>>>>> Used in Exif in the Exif spec <http://www.exif.org/Exif2-2.PDF>. I need
>>>>> access to FieldName as it seems more suitable as a human-friendly
>>>>> identifier
>>>>> for the tag.
>>>>>
>>>>> I think it would be ideal if TagInfo supports both TagName and
>>>>> FieldName.
>>>>> What does the dev team think? If there are not many -1s then I will
>>>>> file
>>>>> in
>>>>> RFE in JIRA.
>>>>>
>>>>> Thanks for your input.
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Farrukh
>>>>>
>>>>> Web: http://www.wellfleetsoftware.com
>>>>>
>>>> Hi Farrukh
>>>>
>>>> The TIFF6 specification Appendix A only has a "TagName", which is
>>>> similar to Exif 2.2's "FieldName". Other TIFF tag specifications (DNG,
>>>> TIFFPM6, RFC 2301) also only give a name and a description.
>>>>
>>>> Maybe what we need is:
>>>> Use TagInfo's "name" field for the name taken verbatim from those
>>>> specs (eg. use "ImageWidth" instead of "Image Width")
>>>> Add a "description" field to TagInfo with a long description (eg.
>>>> "Image width, the number of columns in the image")
>>>>
>>>> What do you think?
>>>
>>>
>>> Hi Damjan,
>>>
>>> +1 on your proposed solution for using TagInfo.name for the Exif 2.2's
>>> "Field Name" and for adding a TagInfo.description for Exif 2.2's "Tag
>>> Name".
>>> This is what I was thinking as well. That in conjunction with existing
>>> TagInfo.tag (the numeric id) completes the identification, naming and
>>> description of the tag and makes for a clean model.
>>>
>>> What do dev team members
>>> <http://commons.apache.org/imaging/team-list.html>
>>> think about this proposal?
>>>
>>> As an aside, this matches very well with ebXML RegRep's Registry
>>> Information
>>> Model which is what I am trying to map photo metadata to. My eventual
>>> goal
>>> is to define a standard specification to manage image content and
>>> metadata
>>> in an ebXML Registry and Repository.
>>>
>>>
>>> --
>>> Regards,
>>> Farrukh
>>>
>>> Web: http://www.wellfleetsoftware.com
>>>
>> Those dev teams members are no longer around, it's mostly just me :).
>>
>> "description" is going to be difficult, as only EXIF provides it. But
>> I'll start doing the "name".
>>
>
> Hi Damjan,
>
> Please see the patch I submitted for thread:
>
> http://mail-archives.apache.org/mod_mbox/commons-dev/201207.mbox/browser
>
> Above thread seems quite related to this one.
>
> I think IPTC provides description too.
>
> If a metadata format other than EXIF or IPTC (which are others btw?) does
> not support description then we can simply return null for that.

The only other metadata format is XMP, but at the moment it's read by
a separate method and returned as a string of XML.

>
> BTW, ok if I start a JIRA issue (or should it be two?) to track both
> threads' issues?

Of course, go ahead.

>
> --
> Regards,
> Farrukh
>
> Web: http://www.wellfleetsoftware.com
>
>
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>

Regards
Damjan

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Re: [IMAGING] TagInfo and distinction between TagName and FieldName

Posted by Farrukh Najmi <fa...@wellfleetsoftware.com>.
On 07/03/2012 01:56 PM, Damjan Jovanovic wrote:
> On Tue, Jul 3, 2012 at 3:48 PM, Farrukh Najmi
> <fa...@wellfleetsoftware.com> wrote:
>> On 07/02/2012 11:22 PM, Damjan Jovanovic wrote:
>>> On Mon, Jul 2, 2012 at 11:33 PM, Farrukh Najmi
>>> <fa...@wellfleetsoftware.com> wrote:
>>>> Hi Guys,
>>>>
>>>> I am new to the project so forgive me if the answer is obvious...
>>>>
>>>> I am working with latest svn bits and the
>>>> org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to
>>>> only
>>>> support the TagName column of Table 3 TIFF Rev. 6.0 Attribute Information
>>>> Used in Exif in the Exif spec <http://www.exif.org/Exif2-2.PDF>. I need
>>>> access to FieldName as it seems more suitable as a human-friendly
>>>> identifier
>>>> for the tag.
>>>>
>>>> I think it would be ideal if TagInfo supports both TagName and FieldName.
>>>> What does the dev team think? If there are not many -1s then I will file
>>>> in
>>>> RFE in JIRA.
>>>>
>>>> Thanks for your input.
>>>>
>>>> --
>>>> Regards,
>>>> Farrukh
>>>>
>>>> Web: http://www.wellfleetsoftware.com
>>>>
>>> Hi Farrukh
>>>
>>> The TIFF6 specification Appendix A only has a "TagName", which is
>>> similar to Exif 2.2's "FieldName". Other TIFF tag specifications (DNG,
>>> TIFFPM6, RFC 2301) also only give a name and a description.
>>>
>>> Maybe what we need is:
>>> Use TagInfo's "name" field for the name taken verbatim from those
>>> specs (eg. use "ImageWidth" instead of "Image Width")
>>> Add a "description" field to TagInfo with a long description (eg.
>>> "Image width, the number of columns in the image")
>>>
>>> What do you think?
>>
>> Hi Damjan,
>>
>> +1 on your proposed solution for using TagInfo.name for the Exif 2.2's
>> "Field Name" and for adding a TagInfo.description for Exif 2.2's "Tag Name".
>> This is what I was thinking as well. That in conjunction with existing
>> TagInfo.tag (the numeric id) completes the identification, naming and
>> description of the tag and makes for a clean model.
>>
>> What do dev team members <http://commons.apache.org/imaging/team-list.html>
>> think about this proposal?
>>
>> As an aside, this matches very well with ebXML RegRep's Registry Information
>> Model which is what I am trying to map photo metadata to. My eventual goal
>> is to define a standard specification to manage image content and metadata
>> in an ebXML Registry and Repository.
>>
>>
>> --
>> Regards,
>> Farrukh
>>
>> Web: http://www.wellfleetsoftware.com
>>
> Those dev teams members are no longer around, it's mostly just me :).
>
> "description" is going to be difficult, as only EXIF provides it. But
> I'll start doing the "name".
>

Hi Damjan,

Please see the patch I submitted for thread:

http://mail-archives.apache.org/mod_mbox/commons-dev/201207.mbox/browser

Above thread seems quite related to this one.

I think IPTC provides description too.

If a metadata format other than EXIF or IPTC (which are others btw?) 
does not support description then we can simply return null for that.

BTW, ok if I start a JIRA issue (or should it be two?) to track both 
threads' issues?

-- 
Regards,
Farrukh

Web: http://www.wellfleetsoftware.com


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Re: [IMAGING] TagInfo and distinction between TagName and FieldName

Posted by Damjan Jovanovic <da...@gmail.com>.
On Tue, Jul 3, 2012 at 3:48 PM, Farrukh Najmi
<fa...@wellfleetsoftware.com> wrote:
> On 07/02/2012 11:22 PM, Damjan Jovanovic wrote:
>>
>> On Mon, Jul 2, 2012 at 11:33 PM, Farrukh Najmi
>> <fa...@wellfleetsoftware.com> wrote:
>>>
>>> Hi Guys,
>>>
>>> I am new to the project so forgive me if the answer is obvious...
>>>
>>> I am working with latest svn bits and the
>>> org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to
>>> only
>>> support the TagName column of Table 3 TIFF Rev. 6.0 Attribute Information
>>> Used in Exif in the Exif spec <http://www.exif.org/Exif2-2.PDF>. I need
>>> access to FieldName as it seems more suitable as a human-friendly
>>> identifier
>>> for the tag.
>>>
>>> I think it would be ideal if TagInfo supports both TagName and FieldName.
>>> What does the dev team think? If there are not many -1s then I will file
>>> in
>>> RFE in JIRA.
>>>
>>> Thanks for your input.
>>>
>>> --
>>> Regards,
>>> Farrukh
>>>
>>> Web: http://www.wellfleetsoftware.com
>>>
>> Hi Farrukh
>>
>> The TIFF6 specification Appendix A only has a "TagName", which is
>> similar to Exif 2.2's "FieldName". Other TIFF tag specifications (DNG,
>> TIFFPM6, RFC 2301) also only give a name and a description.
>>
>> Maybe what we need is:
>> Use TagInfo's "name" field for the name taken verbatim from those
>> specs (eg. use "ImageWidth" instead of "Image Width")
>> Add a "description" field to TagInfo with a long description (eg.
>> "Image width, the number of columns in the image")
>>
>> What do you think?
>
>
> Hi Damjan,
>
> +1 on your proposed solution for using TagInfo.name for the Exif 2.2's
> "Field Name" and for adding a TagInfo.description for Exif 2.2's "Tag Name".
> This is what I was thinking as well. That in conjunction with existing
> TagInfo.tag (the numeric id) completes the identification, naming and
> description of the tag and makes for a clean model.
>
> What do dev team members <http://commons.apache.org/imaging/team-list.html>
> think about this proposal?
>
> As an aside, this matches very well with ebXML RegRep's Registry Information
> Model which is what I am trying to map photo metadata to. My eventual goal
> is to define a standard specification to manage image content and metadata
> in an ebXML Registry and Repository.
>
>
> --
> Regards,
> Farrukh
>
> Web: http://www.wellfleetsoftware.com
>

Those dev teams members are no longer around, it's mostly just me :).

"description" is going to be difficult, as only EXIF provides it. But
I'll start doing the "name".

Regards
Damjan

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Re: [IMAGING] TagInfo and distinction between TagName and FieldName

Posted by Farrukh Najmi <fa...@wellfleetsoftware.com>.
On 07/02/2012 11:22 PM, Damjan Jovanovic wrote:
> On Mon, Jul 2, 2012 at 11:33 PM, Farrukh Najmi
> <fa...@wellfleetsoftware.com> wrote:
>> Hi Guys,
>>
>> I am new to the project so forgive me if the answer is obvious...
>>
>> I am working with latest svn bits and the
>> org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to only
>> support the TagName column of Table 3 TIFF Rev. 6.0 Attribute Information
>> Used in Exif in the Exif spec <http://www.exif.org/Exif2-2.PDF>. I need
>> access to FieldName as it seems more suitable as a human-friendly identifier
>> for the tag.
>>
>> I think it would be ideal if TagInfo supports both TagName and FieldName.
>> What does the dev team think? If there are not many -1s then I will file in
>> RFE in JIRA.
>>
>> Thanks for your input.
>>
>> --
>> Regards,
>> Farrukh
>>
>> Web: http://www.wellfleetsoftware.com
>>
> Hi Farrukh
>
> The TIFF6 specification Appendix A only has a "TagName", which is
> similar to Exif 2.2's "FieldName". Other TIFF tag specifications (DNG,
> TIFFPM6, RFC 2301) also only give a name and a description.
>
> Maybe what we need is:
> Use TagInfo's "name" field for the name taken verbatim from those
> specs (eg. use "ImageWidth" instead of "Image Width")
> Add a "description" field to TagInfo with a long description (eg.
> "Image width, the number of columns in the image")
>
> What do you think?

Hi Damjan,

+1 on your proposed solution for using TagInfo.name for the Exif 2.2's 
"Field Name" and for adding a TagInfo.description for Exif 2.2's "Tag Name".
This is what I was thinking as well. That in conjunction with existing 
TagInfo.tag (the numeric id) completes the identification, naming and 
description of the tag and makes for a clean model.

What do dev team members 
<http://commons.apache.org/imaging/team-list.html> think about this 
proposal?

As an aside, this matches very well with ebXML RegRep's Registry 
Information Model which is what I am trying to map photo metadata to. My 
eventual goal is to define a standard specification to manage image 
content and metadata in an ebXML Registry and Repository.

-- 
Regards,
Farrukh

Web: http://www.wellfleetsoftware.com

Re: [IMAGING] TagInfo and distinction between TagName and FieldName

Posted by Damjan Jovanovic <da...@gmail.com>.
On Mon, Jul 2, 2012 at 11:33 PM, Farrukh Najmi
<fa...@wellfleetsoftware.com> wrote:
>
> Hi Guys,
>
> I am new to the project so forgive me if the answer is obvious...
>
> I am working with latest svn bits and the
> org.apache.commons.imaging.formats.tiff.taginfos.TagInfo class seems to only
> support the TagName column of Table 3 TIFF Rev. 6.0 Attribute Information
> Used in Exif in the Exif spec <http://www.exif.org/Exif2-2.PDF>. I need
> access to FieldName as it seems more suitable as a human-friendly identifier
> for the tag.
>
> I think it would be ideal if TagInfo supports both TagName and FieldName.
> What does the dev team think? If there are not many -1s then I will file in
> RFE in JIRA.
>
> Thanks for your input.
>
> --
> Regards,
> Farrukh
>
> Web: http://www.wellfleetsoftware.com
>

Hi Farrukh

The TIFF6 specification Appendix A only has a "TagName", which is
similar to Exif 2.2's "FieldName". Other TIFF tag specifications (DNG,
TIFFPM6, RFC 2301) also only give a name and a description.

Maybe what we need is:
Use TagInfo's "name" field for the name taken verbatim from those
specs (eg. use "ImageWidth" instead of "Image Width")
Add a "description" field to TagInfo with a long description (eg.
"Image width, the number of columns in the image")

What do you think?

Regards
Damjan

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