The getQuantumRange is a useful function, since many of the ImageMagick functions accept parameters from 0 to a maximum of the Quantum Range. When getting a return value for this, it doesn't return a string. It actually returns an array, with one type being a String ('quantumRangeLong') and the other type being a Long Int ('quantumRangeString'). Here's some sample code and the results, given a color, BMP file photograph that is 600x450 pixels...
<?php
// Author: holdoffhunger@gmail.com
// Imagick Type
// ---------------------------------------------
$imagick_type = new Imagick();
// Open File
// ---------------------------------------------
$file_to_grab = "image_workshop_directory/test.bmp";
$file_handle_for_viewing_image_file = fopen($file_to_grab, 'a+');
// Grab File
// ---------------------------------------------
$imagick_type->readImageFile($file_handle_for_viewing_image_file);
// Get Quantum Range
// ---------------------------------------------
$imagick_type_quantum_range = $imagick_type->getQuantumRange();
// Print Results
// ---------------------------------------------
print("<pre>");
print_r($imagick_type_quantum_range);
print("</pre>");
?>
Output:
Array
(
[quantumRangeLong] => 65535
[quantumRangeString] => 65535
)
Imagick::getQuantumRange
(PECL imagick 2, PECL imagick 3)
Imagick::getQuantumRange — Returns the Imagick quantum range
Description
Returns the quantum range for the Imagick instance.
Parameters
This function has no parameters.
Return Values
Returns an associative array containing the quantum range as an
int ("quantumRangeLong") and as a
string ("quantumRangeString").
Errors/Exceptions
Throws ImagickException on error.
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holdoffhunger at gmail dot com ¶
12 years ago
