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Imagick::importImagePixels — Imports image pixels
$x
, int $y
, int $width
, int $height
, string $map
, int $storage
, array $pixels
)
Imports pixels from an array into an image. The map
is usually
'RGB'. This method imposes the following constraints for the parameters: amount of pixels
in the array must match width
x height
x length of the map.
此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
x
The image x position
y
The image y position
width
The image width
height
The image height
map
Map of pixel ordering as a string. This can be for example RGB. The value can be any combination or order of R = red, G = green, B = blue, A = alpha (0 is transparent), O = opacity (0 is opaque), C = cyan, Y = yellow, M = magenta, K = black, I = intensity (for grayscale), P = pad.
storage
The pixel storage method. Refer to this list of pixel constants.
pixels
The array of pixels
成功时返回 TRUE
。
错误时抛出 ImagickException。
Example #1 Imagick::importImagePixels() example
<?php
$count = 2000 * 3 ;
$pixels =
array_merge ( array_pad (array(), $count , 0 ),
array_pad (array(), $count , 255 ),
array_pad (array(), $count , 0 ),
array_pad (array(), $count , 255 ),
array_pad (array(), $count , 0 ));
$width = $height = pow (( count ( $pixels ) / 3 ), 0.5 );
$im = new Imagick ();
$im -> newImage ( $width , $height , 'gray' );
$im -> importImagePixels ( 0 , 0 , $width , $height , "RGB" , Imagick :: PIXEL_CHAR , $pixels );
$im -> setImageFormat ( 'jpg' );
header ( "Content-Type: image/jpg" );
echo $im ;
?>
以上例程的输出类似于: