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Imagick::identifyImage

(PECL imagick 2.0.0)

Imagick::identifyImageIdentifies an image and fetches attributes

Descrição

Imagick::identifyImage ([ bool $appendRawOutput = FALSE ] ) : array

Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.

Parâmetros

appendRawOutput

If TRUE then the raw output is appended to the array.

Valor Retornado

Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.

Exemplo #1 Example Result Format

Array
(
    [imageName] => /some/path/image.jpg
    [format] => JPEG (Joint Photographic Experts Group JFIF format)
    [geometry] => Array
        (
            [width] => 90
            [height] => 90
        )

    [type] => TrueColor
    [colorSpace] => RGB
    [resolution] => Array
        (
            [x] => 300
            [y] => 300
        )

    [units] => PixelsPerInch
    [fileSize] => 1.88672kb
    [compression] => JPEG
    [signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)

Erros

Lança ImagickException em caso de erro.

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User Contributed Notes 3 notes

up
1
rhuanpachecok at gmail dot com
2 months ago
I have created a function to parse the "rawOutput" because the information provided by this function is quite useless.

function parseIdentify($info) {
    $lines = explode("\n", $info);
   
    $outputs = [];
    $output = [];
    $keys = [];
   
    $currSpaces = 0;
    $raw = false;
   
    foreach($lines as $line) {
        $trimLine = trim($line);
       
        if(empty($trimLine)) continue;
       
        if($raw) {
            preg_match('/^[0-9]+:\s/', $trimLine, $match);
           
            if(!empty($match)) {
                $regex = '/([\d]+):';
                $regex .= '\s(\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3}\))';
                $regex .= '\s(#\w+)';
                $regex .= '\s(srgba\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s|.]+\)|\w+)/';

                preg_match($regex, $trimLine, $matches);
                array_shift($matches);
               
                $output['Image'][$raw][] = $matches;
               
                continue;
            }
           
            else {
                $raw = false;
                array_pop($keys);
            }
        }
       
        preg_match('/^\s+/', $line, $match);
       
        $spaces = isset($match[0]) ? strlen($match[0]) : $spaces = 0;
        $parts = preg_split('/:\s/', $trimLine, 2);
       
        $_key = ucwords($parts[0]);
        $_key = str_replace(' ', '', $_key);
        $_val = isset($parts[1]) ? $parts[1] : [];
       
        if($_key == 'Image') {
            if(!empty($output)) {
                $outputs[] = $output['Image'];
                $output = [];
            }
           
            $_val = [];
        }
       
        if($spaces < $currSpaces) {
            for($i = 0; $i < ($currSpaces - $spaces) / 2; $i++) {
                array_pop($keys);
            }
        }
       
        if(is_array($_val)) {
            $_key = rtrim($_key, ':');
            $keys[] = $_key;
           
            if($_key == 'Histogram' || $_key == 'Colormap') {
                $raw = $_key;
            }
        }
       
        $currSpaces = $spaces;
        $arr = &$output;
       
        foreach($keys as $key) {
            if(!isset($arr[$key])) {
                $arr[$key] = $_val;
            }
           
            $arr = &$arr[$key];
        }
       
        if(!is_array($_val)) {
            $arr[$_key] = $_val;
        }
       
    }
   
    $outputs[] = $output['Image'];
   
    return count($outputs) > 1 ? $outputs : $outputs[0];
}

Usage example:

$img = new Imagick('example.png');
$identify = parseIdentify($img->identifyImage(true)['rawOutput']);

But the "rawOutput" that this function returns only contains the first frame if it is a GIF. Alternatively you can use the command "identify" to get the data of all the frames:

$identify = parseIdentify(shell_exec('identify -verbose example.gif'));
up
0
php at ontheroad dot net dot nz
9 years ago
If you use the option to append the raw output, you can extract the mime type from there.  I'm not sure what's going on in the background here, but it seems far less useful than the command line identify tool.
up
0
rob at OhReally dot nl
12 years ago
The array returned by Imagick::identifyImage():

Array
(
    [imageName] => /some/path/image.jpg
    [format] => JPEG (Joint Photographic Experts Group JFIF format)
    [geometry] => Array
        (
            [width] => 90
            [height] => 90
        )

    [type] => TrueColor
    [colorSpace] => RGB
    [resolution] => Array
        (
            [x] => 300
            [y] => 300
        )

    [units] => PixelsPerInch
    [fileSize] => 1.88672kb
    [compression] => JPEG
    [signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)

Looks like the only way to get the mimetype is getimagesize()...
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