Imagick
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Imagick::distortImage

(PECL imagick 2.0.1)

Imagick::distortImage — Distorts an image using various distortion methods

Descrição

bool Imagick::distortImage ( int $method , array $arguments , bool $bestfit )

Distorts an image using various distortion methods, by mapping color lookups of the source image to a new destination image usually of the same size as the source image, unless 'bestfit' is set to TRUE.

If 'bestfit' is enabled, and distortion allows it, the destination image is adjusted to ensure the whole source 'image' will just fit within the final destination image, which will be sized and offset accordingly. Also in many cases the virtual offset of the source image will be taken into account in the mapping.

This method is available if Imagick has been compiled against ImageMagick version 6.3.6 or newer.

Parâmetros

method

The method of image distortion. See distortion constants

arguments

The arguments for this distortion method

bestfit

Attempt to resize destination to fit distorted source

Valor Retornado

Returns TRUE on success.

Erros

Throws ImagickException on error.

Exemplos

Exemplo #1 Using Imagick::distortImage():

Distort an image and display to the browser.

<?php
/* Create new object */
$im = new Imagick();

/* Create new checkerboard pattern */
$im->newPseudoImage(100, 100, "pattern:checkerboard");

/* Set the image format to png */
$im->setImageFormat('png');

/* Fill new visible areas with transparent */
$im->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);

/* Activate matte */
$im->setImageMatte(true);

/* Control points for the distortion */
$controlPoints = array( 10, 10, 
                        10, 5,

                        10, $im->getImageHeight() - 20,
                        10, $im->getImageHeight() - 5,

                        $im->getImageWidth() - 10, 10,
                        $im->getImageWidth() - 10, 20,

                        $im->getImageWidth() - 10, $im->getImageHeight() - 10,
                        $im->getImageWidth() - 10, $im->getImageHeight() - 30);

/* Perform the distortion */                       
$im->distortImage(Imagick::DISTORTION_PERSPECTIVE, $controlPoints, true);

/* Ouput the image */
header("Content-Type: image/png");
echo $im;
?>

O exemplo acima irá imprimir algo similar à:

Output of example : Using Imagick::distortImage()

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