Php/docs/imagick.getpixeliterator
Imagick::getPixelIterator
(PECL imagick 2, PECL imagick 3)
Imagick::getPixelIterator — Returns a MagickPixelIterator
返回值
Returns an ImagickPixelIterator on success.
错误/异常
错误时抛出 ImagickException。
范例
Example #1 Imagick::getPixelIterator()
<?phpfunction getPixelIterator($imagePath) { $imagick = new \Imagick(realpath($imagePath)); $imageIterator = $imagick->getPixelIterator(); foreach ($imageIterator as $row => $pixels) { /* Loop through pixel rows */ foreach ($pixels as $column => $pixel) { /* Loop through the pixels in the row (columns) */ /** @var $pixel \ImagickPixel */ if ($column % 2) { $pixel->setColor("rgba(0, 0, 0, 0)"); /* Paint every second pixel black*/ } } $imageIterator->syncIterator(); /* Sync the iterator, this is important to do on each iteration */ } header("Content-Type: image/jpg"); echo $imagick;}?>