Imagick::thumbnailImage

    (PECL imagick 2, PECL imagick 3)

    Imagick::thumbnailImage — Changes the size of an image

    说明

    public Imagick::thumbnailImage(
        int $columns,
        int $rows,
        bool $bestfit = false,
        bool $fill = false,
        bool $legacy = false
    ): bool

    Changes the size of an image to the given dimensions and removes any associated profiles. The goal is to produce small, low cost thumbnail images suited for display on the Web. If true is given as a third parameter then columns and rows parameters are used as maximums for each side. Both sides will be scaled down until they match or are smaller than the parameter given for the side.

    注意: 参数 bestfit 的特性在 Imagick 3.0.0 中已改变。在此版本以前，当目标尺寸设为 400x400 时，原尺寸为 200x150 的图像将不会被改变。自 Imagick 3.0.0 起，源图像将会被放大到 400x300 因为这将更好的适合目标尺寸。当使用参数 bestfit 时，必须同时给出宽度和高度。

    参数

    columns

    Image width

    rows

    Image height

    bestfit

    Whether to force maximum values

    返回值

    成功时返回 true。

    错误／异常

    错误时抛出 ImagickException。

    示例

    示例 #1 Imagick::thumbnailImage()

    <?php
    function thumbnailImage($imagePath) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->setbackgroundcolor('rgb(64, 64, 64)');
    $imagick->thumbnailImage(100, 100, true, true);
    header("Content-Type: image/jpg");
    echo     $imagick->getImageBlob();
    }

    ?>

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