Php/docs/imagick.painttransparentimage
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Imagick::paintTransparentImage
(PECL imagick 2, PECL imagick 3)
Imagick::paintTransparentImage — Changes any pixel that matches color with the color defined by fill
Warning 此函数在 Imagick 3.4.4 中被 废弃，强烈建议不要应用此函数。
说明
public 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 |
|---|---|
| PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter.
Previous versions allow only an ImagickPixel object. |
