Imagick::sharpenImage

(PECL imagick 2.0.0)

Imagick::sharpenImage — Sharpens an image

설명

bool Imagick::sharpenImage ( float $radius , float $sigma [, int $channel= Imagick::CHANNEL_ALL ] )

Warning

이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.

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 selects a suitable radius for you.

인수

radius
sigma
channel

반환값

성공시에 TRUE를 반환합니다.