Php/docs/imagick.importimagepixels
Imagick::importImagePixels
(PECL imagick 2 >= 2.3.0, PECL imagick 3)
Imagick::importImagePixels — Imports image pixels
说明
public Imagick::importImagePixels
( int $x
, int $y
, int $width
, int $height
, string $map
, int $storage
, array $pixels
) : bool
Imports pixels from an array into an image. The map is usually
'RGB'. This method imposes the following constraints for the parameters: amount of pixels
in the array must match width x height x length of the map.
此方法在Imagick基于ImageMagick 6.4.5以上版本编译时可用。
参数
x- The image x position
y- The image y position
width- The image width
height- The image height
map- Map of pixel ordering as a string. This can be for example
RGB. The value can be any combination or order of R = red, G = green, B = blue, A = alpha (0 is transparent), O = opacity (0 is opaque), C = cyan, Y = yellow, M = magenta, K = black, I = intensity (for grayscale), P = pad. storage- The pixel storage method. Refer to this list of pixel constants.
pixels- The array of pixels
返回值
成功时返回 true。
错误／异常
错误时抛出 ImagickException。
范例
Example #1 Imagick::importImagePixels() example
<?php/* Generate array of pixels. 2000 pixels per color stripe */$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(), $count, 0));/* Width and height. The area is amount of pixels divided by three. Three comes from 'RGB', three values per pixel */$width = $height = pow((count($pixels) / 3), 0.5);/* Create empty image */$im = new Imagick();$im->newImage($width, $height, 'gray');/* Import the pixels into image. width * height * strlen("RGB") must match count($pixels) */$im->importImagePixels(0, 0, $width, $height, "RGB", Imagick::PIXEL_CHAR, $pixels);/* output as jpeg image */$im->setImageFormat('jpg');header("Content-Type: image/jpg");echo $im;?>
以上例程的输出类似于：
