Imagick::colorizeImage

    (PECL imagick 2, PECL imagick 3)

    Imagick::colorizeImage — Blends the fill color with the image

    说明

    publicImagick::colorizeImage(mixed$colorize, mixed$opacity, bool$legacy = false): bool

    Blends the fill color with each pixel in the image.

    参数

    colorize

    ImagickPixel object or a string containing the colorize color

    opacity

    ImagickPixel object or an float containing the opacity value. 1.0 is fully opaque and 0.0 is fully transparent.

    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 and a float representing the opacity value as the second parameter. Previous versions allow only an ImagickPixel objects.

    示例

    示例 #1 Imagick::colorizeImage()

    <?php
    function colorizeImage($imagePath, $color, $opacity) {
    $imagick = new \Imagick(realpath($imagePath));
    $opacity = $opacity / 255.0;
    $opacityColor = new \ImagickPixel("rgba(0, 0, 0, $opacity)");
    $imagick->colorizeImage($color, $opacityColor);
    header("Content-Type: image/jpg");
    echo     $imagick->getImageBlob();
    }

    ?>
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