PHP | Gmagick setimagetype() Function

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The Gmagick::setimagetype() function is an inbuilt function in PHP which is used to set the image type.

Syntax:

Gmagick Gmagick::setimagetype( int $imgType )

Parameters: This function accepts a single parameter $imgType which holds an integer value corresponding to one of the IMGTYPE constants.

All the IMGTYPE constants are listed below:

Gmagick::IMGTYPE_UNDEFINED (0)
Gmagick::IMGTYPE_BILEVEL (1)
Gmagick::IMGTYPE_GRAYSCALE (2)
Gmagick::IMGTYPE_GRAYSCALEMATTE (3)
Gmagick::IMGTYPE_PALETTE (4)
Gmagick::IMGTYPE_PALETTEMATTE (5)
Gmagick::IMGTYPE_TRUECOLOR (6)
Gmagick::IMGTYPE_TRUECOLORMATTE (7)
Gmagick::IMGTYPE_COLORSEPARATION (8)
Gmagick::IMGTYPE_COLORSEPARATIONMATTE (9)
Gmagick::IMGTYPE_OPTIMIZE (10)

Return Value: This function returns Gmagick object on success.

Exceptions: This function throws GmagickException on error.

Below given programs illustrate the Gmagick::setimagetype() function in PHP:

Used Image:

Program 1:

<?php 
  
// Create a new Gmagick object 
$gmagick = new Gmagick('zambiatek.png'); 
  
// Set the image type 
$gmagick->setimagetype(1); 
  
// Display the image 
header("Content-Type: image/png"); 
echo $gmagick; 
?> 

Output:

Program 2:

<?php 
  
// Create a new Gmagick object 
$gmagick = new Gmagick('zambiatek.png'); 
  
// Set the image type 
$gmagick->setimagetype(3); 
  
// Display the image 
header("Content-Type: image/png"); 
echo $gmagick; 
?> 

Output:

Program 3:

<?php 
  
// Create a new Gmagick object 
$gmagick = new Gmagick('zambiatek.png'); 
   
// Create a GmagickDraw object 
$draw = new GmagickDraw(); 
   
// Set the color 
$draw->setFillColor('white'); 
   
// Function to draw rectangle 
$draw->rectangle(0, 0, 800, 400); 
   
// Set the fill color 
$draw->setFillColor('red'); 
   
// Set the font size 
$draw->setfontsize(50); 
   
// Annotate a text 
$draw->annotate(30, 100, 'zambiatek'); 
   
// Use of drawimage function 
$gmagick->drawImage($draw); 
  
// Set the image type 
$gmagick->setimagetype(2); 
  
// Display the image 
header("Content-Type: image/png"); 
echo $gmagick; 
?> 

Output:

Reference: https://www.php.net/manual/en/gmagick.setimagetype.php

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