Imagick::paintTransparentImage

(PECL imagick 2.0.0)

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

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

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

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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.

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