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Imagick::setImageType

(PECL imagick 2.0.0)

Imagick::setImageType — Sets the image type

Description

Imagick::setImageType ( int $image_type ) : bool

Sets the image type.

Parameters

image_type

Return Values

Returns TRUE on success.

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User Contributed Notes 2 notes

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lee dot traynor at skeptic dot de ¶

7 years ago


This function can be used to desaturate an image, i.e. to convert a coloured image into a greyscale:

<?php

$im = new Imagick ("image.jpg");
$im->setImageType (2);
//is now in 256 shades of grey

?>

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quickshiftin at gmail dot com ¶

4 years ago


The cleaner way to set the type to grayscale is to use the Imagick class constant.

$oBw = new \Imagick($sSourceImage);
$oBw->setImageType(\Imagick::IMGTYPE_GRAYSCALE);

I've found this to be a rather harsh 'convert to grayscale' approach. Fred's color2gray script works much better, but it's written in Bash. Time to get it ported over lol

http://www.fmwconcepts.com/imagemagick/color2gray/index.php

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