(PECL imagick 2.0.0)
Imagick::reduceNoiseImage — Smooths the contours of an image
$radius
)Smooths the contours of an image while still preserving edge information. The algorithm works by replacing each pixel with its neighbor closest in value. A neighbor is defined by radius. Use a radius of 0 and Imagick::reduceNoiseImage() selects a suitable radius for you.
radius
В случае успешной работы возвращает TRUE.
Вызывает ImagickException при ошибке.