Imagick::importImagePixels

(No version information available, might only be in Git)
Imports image pixels
public bool Imagick::importImagePixels ( int $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. This method is available if Imagick has been compiled against ImageMagick version 6.4.5 or newer.

Parameters:
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

Returns:

Returns TRUE on success.

Exception:

Throws ImagickException on error.

Examples:
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;

?>

The above example will output something similar to:

Output of example : Imagick::importImagePixels()
doc_php
2016-02-24 16:01:08
Comments
Leave a Comment

Please login to continue.