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Imagick::setColorspace

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Imagick::setColorspaceSet colorspace

Description

bool Imagick::setColorspace ( int $COLORSPACE )

Sets the global colorspace value for the object. This method is available if Imagick has been compiled against ImageMagick version 6.5.7 or newer.

Parameters

COLORSPACE

One of the COLORSPACE constants

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

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T
1 month ago
Right now this function doesn't appear to do anything, ref: http://stackoverflow.com/q/10739822/2685496

As mentioned in the answer, modulateImage works fine as a replacement for converting to gray scale.

<?php

$image
= new Imagick("input.jpg");

$image->modulateImage(100, 0, 100);

$image->writeImage("output.jpg");

$image->clear();

?>
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