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Imagick::sharpenImage

PHP function Edit on GitHub ✎

(PECL imagick 2, PECL imagick 3)

Sharpens an image

Description

Imagick::sharpenImage(float $radius, float $sigma, int $channel = Imagick::CHANNEL_DEFAULT): bool

Sharpens an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and Imagick::sharpenImage() selects a suitable radius for you.

Parameters

radius
sigma
channel

Return Values

Success

Examples

Imagick::sharpenImage()

php

<?php
function sharpenImage($imagePath, $radius, $sigma, $channel) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->sharpenimage($radius, $sigma, $channel);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}

?>

Source: reference/imagick/imagick/sharpenimage.xml · from the official PHP manual (php/doc-en)