Imagick::exportImagePixels
(No version information available, might only be in Git)
Imagick::exportImagePixels — Exports raw image pixels
Description
public array Imagick::exportImagePixels ( int $x , int $y , int $width , int $height , string $map , int $STORAGE )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.
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
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)
}Return Values
Returns an array containing the pixels values.
Errors/Exceptions
Throws ImagickException on error.
← Imagick::evaluateImage
Imagick::extentImage →
© 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
