You are here

Home » API reference » Exif 7

README.txt in Exif 7

Same filename in this branch
  1. 7 README.txt
  2. 7 exif_location/README.txt
Same filename and directory in other branches
  1. 5 README.txt
  2. 6 README.txt
// $Id: 

README file for the Exif Drupal module.


Description
***********

The Exif module allows to display Exif metadata on image nodes. Exif is a
specification for the image file format used by digital cameras.

The metadata tags defined in the Exif standard cover a broad spectrum including [1]:

 * Date and time information. Digital cameras will record the current date and
   time and save this in the metadata.
 * Camera settings. This includes static information such as the camera model
   and make, and information that varies with each image such as orientation,
   aperture, shutter speed, focal length, metering mode, and film speed
   information.
 * Location information, which could come from a GPS receiver connected to the
   camera.
 * Descriptions and copyright information.

Administrators can choose via CCK fields which Exif information are read.

At this time, this module supports Exif information only with JPEG files.

[1] Reference: http://en.wikipedia.org/wiki/Exchangeable_image_file_format


Requirements
**************

CCK with at least textfields enabled.
Exif PHP Extension enabled.


Constraints
*************

Constraints with Image Processing utility :

Note that, it has been reported that when using GD, it strips some fields
(like field_gps_gpslatitude or field_gps_gpslongitude) from uploaded files.
Imagemagick seems not to have this limitation and does not strip these fields.
So Imagemagick is recommended when access to GPS data.

Usage
************

After installing it you can go to your CCK nodetype. It supports both the image module 
aswell as the imagefield module. Let's say you have an content type "photo". Go to your
cck settings and add a new field. For the name of the field you need to follow the following
naming conventions:

### Example:
#1 field_exif_exposuretime -> this would read the ExposureTime of the image and save it
in this field.

#2 field_ifd0_datetime ->	this would read the date time (2009:01:23 08:52:43) of the image.
as a field_type you can take for example a normal textfield, but also a date field would be
possible.

General rule is: [field]_[section]_[name] 

Under admin/settings/exif you can see a list of all possible information. These informations
are taken from the image "sample.jpg". I may not contain all tags available. If you are looking
for some specific tags you can just replace this image with your own image.

File

README.txt
View source 
  1. // $Id: 

  2. 

  3. README file for the Exif Drupal module.

  4. 

  5. 

  6. Description

  7. ***********

  8. 

  9. The Exif module allows to display Exif metadata on image nodes. Exif is a

  10. specification for the image file format used by digital cameras.

  11. 

  12. The metadata tags defined in the Exif standard cover a broad spectrum including [1]:

  13. 

  14.  * Date and time information. Digital cameras will record the current date and

  15.    time and save this in the metadata.

  16.  * Camera settings. This includes static information such as the camera model

  17.    and make, and information that varies with each image such as orientation,

  18.    aperture, shutter speed, focal length, metering mode, and film speed

  19.    information.

  20.  * Location information, which could come from a GPS receiver connected to the

  21.    camera.

  22.  * Descriptions and copyright information.

  23. 

  24. Administrators can choose via CCK fields which Exif information are read.

  25. 

  26. At this time, this module supports Exif information only with JPEG files.

  27. 

  28. [1] Reference: http://en.wikipedia.org/wiki/Exchangeable_image_file_format

  29. 

  30. 

  31. Requirements

  32. **************

  33. 

  34. CCK with at least textfields enabled.

  35. Exif PHP Extension enabled.

  36. 

  37. 

  38. Constraints

  39. *************

  40. 

  41. Constraints with Image Processing utility :

  42. 

  43. Note that, it has been reported that when using GD, it strips some fields

  44. (like field_gps_gpslatitude or field_gps_gpslongitude) from uploaded files.

  45. Imagemagick seems not to have this limitation and does not strip these fields.

  46. So Imagemagick is recommended when access to GPS data.

  47. 

  48. Usage

  49. ************

  50. 

  51. After installing it you can go to your CCK nodetype. It supports both the image module 

  52. aswell as the imagefield module. Let's say you have an content type "photo". Go to your

  53. cck settings and add a new field. For the name of the field you need to follow the following

  54. naming conventions:

  55. 

  56. ### Example:

  57. #1 field_exif_exposuretime -> this would read the ExposureTime of the image and save it

  58. in this field.

  59. 

  60. #2 field_ifd0_datetime ->	this would read the date time (2009:01:23 08:52:43) of the image.

  61. as a field_type you can take for example a normal textfield, but also a date field would be

  62. possible.

  63. 

  64. General rule is: [field]_[section]_[name] 

  65. 

  66. Under admin/settings/exif you can see a list of all possible information. These informations

  67. are taken from the image "sample.jpg". I may not contain all tags available. If you are looking

  68. for some specific tags you can just replace this image with your own image.