Imagick::transverseImage
After operations that change the crop of the image, like trimImage does, IM preserves the old canvas and positioning info. If you need to do additional operations on the image based on the new size, you'll need to reset this info with setImagePage. This is the equivalent of the +repage command line argument.
<?php
$im->trimImage(0);
$im->setImagePage(0, 0, 0, 0);
?>
Imagick::trimImage
(PECL imagick 2.0.0)
Imagick::trimImage — Remove edges from the image
Descrição
bool Imagick::trimImage
( float $fuzz
)
Remove edges that are the background color from the image. Este método esta disponível apenas se Imagick foi compilado com ImageMagick versão 6.2.9 ou mais nova.
Parâmetros
- fuzz
-
By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. This parameter represents the variation on the quantum range.
Valor Retornado
Retorna TRUE em sucesso.
Erros
Dispara ImagickException em erro.
Exemplos
Exemplo #1 Using Imagick::trimImage():
Trim an image, then display to the browser.
<?php
/* Create the object and read the image in */
$im = new Imagick("image.jpg");
/* Trim the image. */
$im->trimImage(0);
/* Ouput the image */
header("Content-Type: image/" . $im->getImageFormat());
echo $im;
?>
Veja Também
- Imagick::getQuantumDepth() - Gets the quantum depth
- Imagick::getQuantumRange() - Returns the Imagick quantum range
User Contributed Notes
Imagick::trimImage
Imagick::trimImage
dhp
23-Apr-2009 01:31
23-Apr-2009 01:31