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Imagick::exportImagePixels — Exports raw image pixels
$x
, int $y
, int $width
, int $height
, string $map
, int $STORAGE
) : arrayExports 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). Este método está disponível se o PHP foi compilado com o ImageMagick versão 6.4.7 ou superior.
xX-coordinate of the exported area
yY-coordinate of the exported area
widthWidth of the exported aread
heightHeight of the exported area
mapOrdering 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.
STORAGERefer to this list of pixel type constants
Exemplo #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);
?>
O exemplo acima irá imprimir:
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)
}
Returns an array containing the pixels values.
Lança ImagickException em caso de erro.