(PECL imagick 2, PECL imagick 3)
Imagick::newPseudoImage — Creates a new image
$columns, int $rows, string $pseudoString): boolCreates a new image using ImageMagick pseudo-formats.
columnscolumns in the new image
rowsrows in the new image
pseudoStringstring containing pseudo image definition.
   Returns true on success.
  
Throws ImagickException on error.
Example #1 Imagick::newPseudoImage()
<?php
function newPseudoImage($canvasType) {
    $imagick = new \Imagick();
    $imagick->newPseudoImage(300, 300, $canvasType);
    $imagick->setImageFormat("png");
    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}
//newPseudoImage('gradient:red-rgba(64, 255, 255, 0.5)');
//newPseudoImage("radial-gradient:red-blue");
newPseudoImage("plasma:fractal");
?>