Fields

Fields

$image.src	-filename
$image.width	-width
$image.height	-height
$image.exif	-hash with EXIF information
$image.xmp	- string with XMP information (in XML format)

Keys of $image.exif are names of EXIF-tags, see specification (http://www.exif.org/specifications.html). Values may be of type string, int, double, date. When a tag has several values, they are turned into hash, with numbers as keys (0…number_of_values-1).

Frequently used EXIF-tags are (for detailed description see specification):

*Tag*	*Type*	Description
Make	string	Camera manufacturer
Model	string	Camera model
DateTimeOriginal	date	Shooting date and time
ExposureTime	double	Exposure time (in seconds)
FNumber	double	Aperture number F
Flash	int	0=was not used, other values=was used

Note: Keys of non-standard EXIF-tags are their values in decimal numbers.

Example
$photo[^image::measure[photo.jpg]]
Filename: $photo.src<br />
Image width in pixels: $photo.width<br />
Image height in pixels: $photo.height<br />
$date_time_original[$photo.exif.DateTimeOriginal]
^if(def $date_time_original){
Picture taken on ^date_time_original.sql-string[]<br />
}

As a result, filename, as well as width and height of the image stored in this file will be output. If picture was taken with a digital camera, shooting date and time will most likely be output.

Last updated: 24.01.2021