Imagick::paintTransparentImage

(PECL imagick 2.0.0)

Imagick::paintTransparentImage — Changes any pixel that matches color with the color defined by fill

说明

Imagick::paintTransparentImage ( mixed $target , float $alpha , float $fuzz ) : bool

Changes any pixel that matches color with the color defined by fill.

参数

target

Change this target color to specified opacity value within the image.

alpha

The level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.

fuzz

The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same.

返回值

成功时返回 TRUE。

错误／异常

错误时抛出 ImagickException。

更新日志

版本 说明
2.1.0 Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object.

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