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Imagick::setImageBackgroundColor

(PECL imagick 2, PECL imagick 3)

Imagick::setImageBackgroundColorSets the image background color

Description

public Imagick::setImageBackgroundColor(mixed $background): bool

Sets the image background color.

Parameters

background

Return Values

Returns true on success.

Errors/Exceptions

Throws ImagickException on error.

Changelog

Version Description
PECL imagick 2.1.0 Now allows a string representing the color as the parameter. Previous versions allow only an ImagickPixel object.

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User Contributed Notes 2 notes

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1
mjunaidahmad at outlook dot com
6 years ago
<?php

$im
= new \Imagick();

/* read image (914x784) */

$im->readImage($_SERVER['DOCUMENT_ROOT']."/path/toimage/".$inputfront);

$im->setImageBackgroundColor(new \ImagickPixel('transparent')); /* this is equal to -background none (in imagemagick command options ) */

/*Control points for the distortion in order to check weather setImageBackgound is working properly*/

$controlPoints = array( 0,0,
280,0,

994,0,
914,50,

994,862,
784,842,

0,862,
110,762);

/* Perform the distortion */
$im->distortImage(\Imagick::DISTORTION_PERSPECTIVE, $controlPoints, true);

/* Ouput the image */
$output_front_distort="Projects/path/where you want to store image/distorted_book.png";

header("Content-Type: image/png");
$im->writeImage($_SERVER['DOCUMENT_ROOT']."/designerr/public/".$output_front_distort);

?>
up
-17
Matthias Zartmann
9 years ago
Small example to optimize a gray scanned image:
<?php
$im
= new Imagick();
$im->readImage("~/scaninput_300DPI.tiff");
//deskew the image
$im->deskewImage(40);
//Crop to A4 and scanner pageoffset 50
$im->cropImage(2480, 3416, 50, 0);
//Need a Monochrome Image
$im->setImageColorspace(2);
$im->thresholdImage(11000);
//Compressen tiff CCITT Group 4
$im->setImageCompression(Imagick::COMPRESSION_GROUP4);
$im->writeimage("~/monochrome_300DPI.tiff");
//Cleanup
$im->clear();
$im->destroy();
?>
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