ImagickPixelIterator::resetIterator
(PECL imagick 2.0.0)
ImagickPixelIterator::resetIterator — Resets the pixel iterator
Description
bool ImagickPixelIterator::resetIterator ( void )Warning
This function is currently not documented; only its argument list is available.
Resets the pixel iterator. Use it in conjunction with ImagickPixelIterator::getNextIteratorRow() to iterate over all the pixels in a pixel container.
Return Values
Returns TRUE on success.
Examples
Example #1 ImagickPixelIterator::resetIterator()
<?php
function?resetIterator($imagePath)?{
????$imagick?=?new?\Imagick(realpath($imagePath));
????$imageIterator?=?$imagick->getPixelIterator();
????/*?Loop?trough?pixel?rows?*/
????foreach?($imageIterator?as?$pixels)?{
????????/*?Loop?through?the?pixels?in?the?row?(columns)?*/
????????foreach?($pixels?as?$column?=>?$pixel)?{
????????????/**?@var?$pixel?\ImagickPixel?*/
????????????if?($column?%?2)?{
????????????????/*?Make?every?second?pixel?25%?red*/
????????????????$pixel->setColorValue(\Imagick::COLOR_RED,?64);?
????????????}
????????}
????????/*?Sync?the?iterator,?this?is?important?to?do?on?each?iteration?*/
????????$imageIterator->syncIterator();
????}
????$imageIterator->resetiterator();
????/*?Loop?trough?pixel?rows?*/
????foreach?($imageIterator?as?$pixels)?{
????????/*?Loop?through?the?pixels?in?the?row?(columns)?*/
????????foreach?($pixels?as?$column?=>?$pixel)?{
????????????/**?@var?$pixel?\ImagickPixel?*/
????????????if?($column?%?3)?{
????????????????$pixel->setColorValue(\Imagick::COLOR_BLUE,?64);?/*?Make?every?second?pixel?a?little?blue*/
????????????????//$pixel->setColor("rgba(0,?0,?128,?0)");?/*?Paint?every?second?pixel?black*/
????????????}
????????}
????????$imageIterator->syncIterator();?/*?Sync?the?iterator,?this?is?important?to?do?on?each?iteration?*/
????}
????$imageIterator->clear();
????header("Content-Type:?image/jpg");
????echo?$imagick;
}
?>← ImagickPixelIterator::newPixelRegionIterator
ImagickPixelIterator::setIteratorFirstRow →
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