PHP | Gmagick getimagedepth() Function

The Gmagick::getimagedepth() function is an inbuilt function in PHP which is used to gets the depth of the image.

Syntax:

int Gmagick::getimagedepth( void )

Parameters: This function does not accepts any parameter.

Return Value: This function returns the depth of image.

Below programs illustrate the Gmagick::getimagedepth() function in PHP:

Original Image 1:

Program 1:

<?php

// require_once('vendor/autoload.php');

// Create an Gmagick Object
$image = new Gmagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-15.png');

// Use getimagedepth function to calculate image depth

$height = $image->getimagedepth();

// Display the depth of image
print_r($height);
?>

Output:

8

Original Image 2:

Program 2:

<?php
$string = "Computer Science portal for Geeks!";

// Creating new image of above String
// and add color and background
$im = new Gmagick();
$draw = new GmagickDraw();

// Fill the color in image
$draw->setFillColor(new GmagickPixel('green'));

// Set the text font size
$draw->setFontSize(50);

$metrix = $im->queryFontMetrics($draw, $string);
$draw->annotation(0, 40, $string);
$im->newImage($metrix['textWidth'], $metrix['textHeight'],
         new GmagickPixel('white'));

// Draw the image
$im->drawImage($draw);

$im->setImageFormat('jpeg');

$dpth = $im->getimagedepth();

// Display the depth of image
print_r($dpth);
?>

Output:

8 

Reference: http://php.net/manual/en/gmagick.getimagedepth.php