Imagick::sepiaToneImage

(PECL imagick 2.0.0)

Imagick::sepiaToneImage — Sepia tones an image

说明

bool Imagick::sepiaToneImage ( float $threshold )

Applies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone.

参数

threshold

返回值

成功时返回 TRUE。

错误／异常

错误时抛出 ImagickException。