[extension by Piwigo Team] LocalFiles Editor
Install & Activate

When ready LocalFiles Editor on the first (Config) tab, add the following code inside:

$conf['show_exif_fields'] = array(
'exif_field_Make'       => 'Make',
'exif_field_Model'       => 'Model',
'exif_field_ExposureTime'     => 'ExposureTime',
'exif_field_FocalLength'     => 'FocalLength', 
'exif_field_FNumber'       => 'FNumber',
'exif_field_ExposureBiasValue'     => 'ExposureBiasValue',
'exif_field_ISOSpeedRatings'     => 'ISOSpeedRatings',
'exif_field_DateTimeOriginal'     => 'DateTimeOriginal',
'exif_field_ExposureProgram'     => 'ExposureProgram',
'exif_field_Make'       => 'Make',
'exif_field_Model'       => 'Model',
'exif_field_ExposureTime'     => 'ExposureTime',
'exif_field_FocalLength'     => 'FocalLength', 
'exif_field_FNumber'       => 'FNumber',
'exif_field_ExposureBiasValue'     => 'ExposureBiasValue',
'exif_field_ISOSpeedRatings'     => 'ISOSpeedRatings',
'exif_field_DateTimeOriginal'     => 'DateTimeOriginal',
'exif_field_TakenDate'     => 'TakenDate',
'exif_field_ExposureProgram'     => 'ExposureProgram',
'exif_field_ModeArray'       => 'ModeArray',
'exif_field_SelfTimer'       => 'SelfTimer',
'exif_field_ImageQuality'     => 'ImageQuality',
'exif_field_Flash'      => 'Flash',
'exif_field_Drive'       => 'Drive',
'exif_field_FocusMode'       => 'FocusMode',
'exif_field_ImageSize'      => 'ImageSize',
'exif_field_EasyShootingMode'     => 'EasyShootingMode',
'exif_field_Contrast'      => 'Contrast',
'exif_field_Saturation'     => 'Saturation',
'exif_field_Sharpness'       => 'Sharpness',
'exif_field_MeteringMode'     => 'MeteringMode',
'exif_field_ExposureProgram'     => 'ExposureProgram',
'exif_field_MinFocal'       => 'MinFocal',
'exif_field_MaxFocal'       => 'MaxFocal',
'exif_field_FlashActivity'     => 'FlashActivity',
'exif_field_Stabilization'     => 'Stabilization',
'exif_field_SpotMeteringMode'     => 'SpotMeteringMode'
);

Hi toexist,

Very interesting topics concerning EXIF metadata (let's say it's a EXIF specific topic, because we're only talking about technical metadata such as camera parameters)

toexist wrote:

1)
a) How do I add lens information,? ... because the lens here is a modern lens (Pentax 10-17mm fisheye) with electronic connection to the camera, and it should show.
b) So in general, why is all of the metadata not yet there, for instance, lens information and also some of the lines in the code you gave me in the previous post?

Take one of your photos and copy it in the "tools" directory with the name "sample.jpg". Then open http://pics.pierre-rousseau.net/tools/metadata.php you will see all EXIF metadata in your picture and find the ones you want to be displayed. Once you have the name of the property, you "just" have to add it in the $conf['show_exif_fields'] array.

The process is very "basic&manual", sorry for this, we have several steps to walk before reaching the ideal user interface. I have already investigated how the same job (displaying EXIF infos) was performed in other "concurrent" scripts and in general the basic configuration is much better but you can't tune as fine as in Piwigo. I think Piwigo needs:

1. a better default configuration
2. a user interface to select which metadata to display (tools/metadata.php is just not enough)

toexist wrote:

2) How do I make relevant information in normal format, i.e. FocalLength 10mm instead of 10/1 and FNumber f/4.5 instead of 45/10?

EX-FTB made a great job in [extension by ] but as the plugin title says, it's only for Canon models :-/

This is a feature that should be available for as many lenses as possible (Canon is nice, but so is Pentax).

grum (Piwigo team core member) has a Pentax K20D http://photos.grum.fr/picture.php?/4577/list/4577 and I can't see if he improved the display of EXIF metadata because he didn't change the default $conf['show_exif_fields'] I suppose.

toexist wrote:

3) Do you plan to have a camera database like at http://www.pbase.com/cameras ?

In case you do, it would be outstanding if you could include a query of photos of specific camera-lens combinations.

I recently (mid-december) have made some tests to import a 600 photos set with several cameras/lenses. Producing dozens of combinations. I imported the camera/lens information as tags. This way I could perform combination, and it's really terrific. I can't show you the photos (legal restrictions) but I can show you the tag cloud and 2 combinations.

plg wrote:

grum (Piwigo team core member) has a Pentax K20D http://photos.grum.fr/picture.php?/4577/list/4577 and I can't see if he improved the display of EXIF metadata because he didn't change the default $conf['show_exif_fields'] I suppose.

Hi
For now, I do not have time to look into the management of metadata but I do not despair of being able to take time one day!
With tools like EXIV2 or ExifTool I can see there are lots of interesting information available for which the functions offered by PHP does not seem to allow extraction. I had already started looking for dedicated framework to analyze the metadata, I would have put me seriously ...

Just for your information, what Digikam uses is on this page :
http://www.digikam.org/drupal/sharedlibs

The story goes on :-) read and help on [Forum, topic 15664] [beta-test request] improved metadata management

plg wrote:

Take one of your photos and copy it in the "tools" directory with the name "sample.jpg". Then open metadata.php you will see all EXIF metadata in your picture and find the ones you want to be displayed. Once you have the name of the property, you "just" have to add it in the $conf['show_exif_fields'] array.

I'm new to Piwigo, installed last week and though moving forward rapidly, am really confused as to why I cannot get this one bit of metadata to show up. 

Tools/metadata.php EASILY reads the info I want (several other programs didn't find it), though how do I get it to show up on my pictures?

The data I want, in this case, is "Clark", found in the EXIF [WINXP][Keywords] area.  I tried adding it as above (plus info in config_default.inc.php), though still not in my pictures.
$conf['show_exif_fields'] = array(
  'Make',
  'Model',
  'DateTimeOriginal',
  'COMPUTED;ApertureFNumber',
  'WINXP;Keywords'
  );

I'm working on this as a project for my sister, who is big into genealogy and wants to have family pictures all set before our reunion in a couple months.  She already has 'tagged' (her term, which is what it is called in Windows Photo Gallery) over 12,000 photos and wants to get them online. 

She also wants to search the database to find any/all pictures with this data.  As there are HUNDREDS of these in the pictures, I don't think 'tags' (as defined by Piwigo) is really the right thing.

So far, we really like Piwigo as an 'interface' - much better than me writing it myself!

TWO QUESTIONS:
Just what steps do I need to get 'Clark' out of this data???
How do I make sure it is searchable??

Thanks in advance!

=====================================
Info Returned from tools/metadata.php
=====================================
no IPTC information


EXIF Fields in Luckys_1st_week_with_us.JPG

Array
(
    [FILE] => Array
        (
            [FileName] => Luckys_1st_week_with_us.JPG
            [FileDateTime] => 1298392869
            [FileSize] => 3626213
            [FileType] => 2
            [MimeType] => image/jpeg
            [SectionsFound] => ANY_TAG, IFD0, THUMBNAIL, EXIF, INTEROP, WINXP
        )

    [COMPUTED] => Array
        (
            [html] => width="3264" height="2448"
            [Height] => 2448
            [Width] => 3264
            [IsColor] => 1
            [ByteOrderMotorola] => 1
            [ApertureFNumber] => f/3.1
            [Thumbnail.FileType] => 2
            [Thumbnail.MimeType] => image/jpeg
        )

    [IFD0] => Array
        (
            [Make] => PENTAX Corporation
            [Model] => PENTAX Optio M40
            [Orientation] => 1
            [XResolution] => 72/1
            [YResolution] => 72/1
            [ResolutionUnit] => 2
            [Software] => Optio M40 Ver 1.00
            [DateTime] => 2009:06:16 18:41:26
            [YCbCrPositioning] => 2
            [Exif_IFD_Pointer] => 2324
            [Keywords] => C�l�a�r�k���
            [UndefinedTag:0xC4A5] => PrintIM�0300 LARGE AMOUNT OF UNREADABLE DATA DELETED HERE
            [UndefinedTag:0xEA1C] => LARGE AMOUNT OF UNREADABLE DATA DELETED HERE
        )

    [THUMBNAIL] => Array
        (
            [Compression] => 6
            [XResolution] => 1/96
            [YResolution] => 1/96
            [ResolutionUnit] => 2
            [JPEGInterchangeFormat] => 8446
            [JPEGInterchangeFormatLength] => 3531
        )

    [EXIF] => Array
        (
            [ExposureTime] => 1/50
            [FNumber] => 31/10
            [ISOSpeedRatings] => 800
            [ExifVersion] => 0220
            [DateTimeOriginal] => 2009:06:16 18:41:26
            [DateTimeDigitized] => 2009:06:16 18:41:26
            [ComponentsConfiguration] =>
�
            [CompressedBitsPerPixel] => 3/1
            [ExposureBiasValue] => 0/10
            [MaxApertureValue] => 33/10
            [MeteringMode] => 5
            [Flash] => 9
            [FocalLength] => 63/10
            [MakerNote] => AOC LARGE AMOUNT OF UNREADABLE DATA DELETED HERE
            [FlashPixVersion] => 0100
            [ColorSpace] => 1
            [ExifImageWidth] => 3264
            [ExifImageLength] => 2448
            [InteroperabilityOffset] => 7954
            [CustomRendered] => 0
            [ExposureMode] => 0
            [WhiteBalance] => 0
            [DigitalZoomRatio] => 100/100
            [FocalLengthIn35mmFilm] => 36
            [SceneCaptureType] => 0
            [Contrast] => 0
            [Saturation] => 0
            [Sharpness] => 0
            [SubjectDistanceRange] => 2
            [UndefinedTag:0xEA1C] => LARGE AMOUNT OF UNREADABLE DATA DELETED HERE
            [UndefinedTag:0xEA1D] => 3686
        )

    [INTEROP] => Array
        (
            [InterOperabilityIndex] => R98
            [InterOperabilityVersion] => 0100
        )

    [WINXP] => Array
        (
            [Keywords] => Clark
        )

)