Imagick::getImageProperties

(PECL imagick 2, PECL imagick 3)

Imagick::getImageProperties — Görüntü özelliklerini döndürür

Açıklama

public Imagick::getImageProperties(string $şablon = "*", bool $değerler_ile = true): array

Belirtilen şablon ile eşleşen özelliklerin tümünü içeren bir dizi döndürür. değerler_ile bağımsız değişkeninde false aktarılırsa sadece özellik isimleri döndürülür. Bu yöntem, derleme sırasında ImageMagick kütüphanesinin 6.3.6 veya sonraki bir sürümü kuruluysa kullanılabilir.

Bağımsız Değişkenler

şablon: Özellik isimleri için şablon.
değerler_ile: false belirtilirse sadece özellik isimleri, true belirtilirse değerler de döndürülür.

Dönen Değerler

Görüntü özelliklerini ve isimlerini içeren bir dizi.

Örnekler

Örnek 1 - Imagick::getImageProperties() örneği

EXIF bilgisini elde etme örneği.

<?php

/* Nesneyi oluşturalım */
$im = new imagick("/path/to/example.jpg");

/* EXIF bilgisini alalım */
$exifDizisi = $im->getImageProperties("exif:*");

/* EXIF özelliklerini tarayalım */
foreach ($exifDizisi as $isim => $özellik)
{
    echo "{$isim} => {$özellik}<br />\n";
}

?>

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User Contributed Notes 4 notes

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holdoffhunger at gmail dot com ¶

12 years ago


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)

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benkuhl at gmail dot com ¶

11 years ago


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
        )

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mhufford ¶

15 years ago


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

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

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-2

www dot query at gmail dot com ¶

13 years ago


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: http://php.net/manual/en/book.exif.php

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