Imagick::getImageProperties

(PECL imagick 2.0.0)

Imagick::getImageProperties — Returns the image properties

Description

array Imagick::getImageProperties ([ string $pattern = "*" [, bool $only_names = true ]] )

Returns all associated properties that match the pattern. If TRUE is passed as second parameter only the property names are returned. This method is available if Imagick has been compiled against ImageMagick version 6.3.6 or newer.

Parameters

pattern: The pattern for property names.
only_names: Whether to return only property names. If FALSE then also the values are returned

Return Values

Returns an array containing the image properties or property names.

Examples

Example #1 Using Imagick::getImageProperties():

An example of extracting EXIF information.


<?php

/* Create the object */
$im = new imagick("/path/to/example.jpg");

/* Get the EXIF information */
$exifArray = $im->getImageProperties("exif:*");

/* Loop trough the EXIF properties */
foreach ($exifArray as $name => $property)
{
    echo "{$name} => {$property}<br />\n"; 
}

?>

Коментарии

Aug 03

Автор: mhufford


ImageMagick only supports setting a very small number of EXIF properties.  



See http://www.imagemagick.org/discourse-server/viewtopic.php?t=14234

2009-08-03 17:03:55

http://php5.kiev.ua/manual/ru/imagick.getimageproperties.html

Sep 08

Автор: www dot query at gmail dot com


To access a photograph's EXIF data an alternative method is the normal PHP Exif function.



<?php



        $exif_data = exif_read_data($pic1);

        $edate = $exif_data['DateTime'];



?>



See: book.exif

2011-09-08 14:58:37

http://php5.kiev.ua/manual/ru/imagick.getimageproperties.html

May 20

Автор: holdoffhunger at gmail dot com


The getImageProperties function in PHP returns an array of property keys available for an image.  To get these property values, you use getImageProperty function, giving it one of the available keys provided by the getImageProperties function result.  For some images, you may have a lot of properties and for some, you may have few.  The two that almost every image seems to have are "date:create" and "date:modify", but some images may have forty or more properties, some titled "exif:Compression", "photoshop:Credit", "jpeg:colorspace", "rdf:Alt", "stRef:documentID", and "xap:CreatorTool."  PNG files will also have properties like "png:IHDR.bit_depth" and "png:IHDR.width,height."  So far, it appears generally that GIF and BMP files, being simpler, have fewer properties, whereas JPEG and PNG files, being more complicated, have much wider array of properties.  It seems incredibly useful in document management.



And now, some sample code and results :



<?php



            // Author: holdoffhunger@gmail.com

    

        // Imagick Type

        // ---------------------------------------------



    $imagick_type = new Imagick();

    

        // Open File

        // ---------------------------------------------

        

    $file_to_grab = "image_workshop_directory/test.png";

    

    $file_handle_for_viewing_image_file = fopen($file_to_grab, 'a+');

    

        // Grab File

        // ---------------------------------------------



    $imagick_type->readImageFile($file_handle_for_viewing_image_file);

    

        // Get Image Properties

        // ---------------------------------------------

        

    $imagick_type_properties = $imagick_type->getImageProperties('*', FALSE);

    

        // Print Image Properties

        // ---------------------------------------------

    

    print("<pre>");

        

    print_r($imagick_type_properties);

    

        // Print Each Individual, Image Property

        // ---------------------------------------------

    

    foreach($imagick_type_properties as $value)

    {

        print("$value --- ");

        print($imagick_type->getImageProperty("$value"));

        print("<br><br>");

    }

                

    print("</pre>");



?>



Results of this done on a standard PNG image :



Array

(

    [0] => date:create

    [1] => date:modify

    [2] => png:cHRM                 

    [3] => png:gAMA                 

    [4] => png:IHDR.bit_depth       

    [5] => png:IHDR.color_type      

    [6] => png:IHDR.interlace_method

    [7] => png:IHDR.width,height    

    [8] => png:sRGB                 

)

date:create --- 2012-05-19T18:26:45-05:00



date:modify --- 2012-05-19T18:26:45-05:00



png:cHRM                  --- chunk was found (see Chromaticity, above)



png:gAMA                  --- gamma=0.45455 (See Gamma, above)



png:IHDR.bit_depth        --- 8



png:IHDR.color_type       --- 2



png:IHDR.interlace_method --- 0



png:IHDR.width,height     --- 320, 320



png:sRGB                  --- intent=0 (See Rendering intent)

2012-05-20 02:29:07

http://php5.kiev.ua/manual/ru/imagick.getimageproperties.html

Jan 24

Автор: benkuhl at gmail dot com


The output of this method on a PDF:



Array

        (

            [date:create] => 2013-01-24T13:27:37-05:00

            [date:modify] => 2013-01-24T13:27:37-05:00

            [pdf:HiResBoundingBox] => 1089x396+0+0

            [pdf:SpotColor-0] => PANTONE 697 C

            [pdf:SpotColor-1] => Black

            [pdf:SpotColor-10] => PANTONE 504 M C

            [pdf:SpotColor-2] => Strike_Thru

            [pdf:SpotColor-3] => PANTONE 7421 C

            [pdf:SpotColor-4] => PANTONE 697 C

            [pdf:SpotColor-5] => PANTONE 873 C

            [pdf:SpotColor-6] => PANTONE 504 M C

            [pdf:SpotColor-7] => Die

            [pdf:SpotColor-8] => PANTONE 697 C

            [pdf:SpotColor-9] => PANTONE 504 M C

            [pdf:Version] => PDF-1.5

            [signature] => 4d871b27b26537c523326f92454ecb2e19fa9e0e86e2a075f97354ad4f3bf122

        )