Imagick::adaptiveThresholdImage
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Imagick::adaptiveThresholdImage
Референца за `imagick.adaptivethresholdimage.php` со подобрена типографија и навигација.
Imagick::adaptiveThresholdImage
(PECL imagick 2, PECL imagick 3)
Imagick::adaptiveThresholdImage — Selects a threshold for each pixel based on a range of intensity
= NULL
Selects an individual threshold for each pixel based on the range of intensity values in its local neighborhood. This allows for thresholding of an image whose global intensity histogram doesn't contain distinctive peaks.
Параметри
width-
Width of the local neighborhood.
height-
Height of the local neighborhood.
offset-
The mean offset
Вратени вредности
Патеката до PHP скриптата што треба да се провери. true на успешен исход.
Примери
Пример #1 Imagick::adaptiveThresholdImage()
<?php
function adaptiveThresholdImage($imagePath, $width, $height, $adaptiveOffset) {
$imagick = new \Imagick(realpath($imagePath));
$adaptiveOffsetQuantum = intval($adaptiveOffset * \Imagick::getQuantum());
$imagick->adaptiveThresholdImage($width, $height, $adaptiveOffsetQuantum);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>