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Imagick::exportImagePixels

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Imagick::exportImagePixels — Exports raw image pixels

Description

public Imagick::exportImagePixels ( int $x , int $y , int $width , int $height , string $map , int $STORAGE ) : array

Exports image pixels into an array. The map defines the ordering of the exported pixels. The size of the returned array is width * height * strlen(map). This method is available if Imagick has been compiled against ImageMagick version 6.4.7 or newer.

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Parameters

x

X-coordinate of the exported area

y

Y-coordinate of the exported area

width

Width of the exported aread

height

Height of the exported area

map

Ordering of the exported pixels. For example "RGB". Valid characters for the map are R, G, B, A, O, C, Y, M, K, I and P.

STORAGE

Refer to this list of pixel type constants

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Examples

Example #1 Using Imagick::exportImagePixels()

Export image pixels into an array

<?php

/* Create new object */
$im = new Imagick();

/* Create new image */
$im->newPseudoImage(0, 0, "magick:rose");

/* Export the image pixels */
$pixels = $im->exportImagePixels(10, 10, 2, 2, "RGB", Imagick::PIXEL_CHAR);

/* Output */
var_dump($pixels);
?>

The above example will output:

array(12) {
  [0]=>
  int(72)
  [1]=>
  int(64)
  [2]=>
  int(57)
  [3]=>
  int(69)
  [4]=>
  int(59)
  [5]=>
  int(43)
  [6]=>
  int(124)
  [7]=>
  int(120)
  [8]=>
  int(-96)
  [9]=>
  int(91)
  [10]=>
  int(84)
  [11]=>
  int(111)
}

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Return Values

Returns an array containing the pixels values.

PHP: Imagick::exportImagePixels - Manual Home of Manuel PHP  Contents Haut

Errors/Exceptions

Throws ImagickException on error.

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-imagick.exportimagepixels.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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