PHP | Gmagick setimagetype() Function

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('geeksforgeeks.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('geeksforgeeks.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('geeksforgeeks.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, 'GeeksforGeeks');

// 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