Imagick::colorizeImage
(PECL imagick 2.0.0)
Imagick::colorizeImage — Blends the fill color with the image
说明
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 |
|---|---|
| 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. |
范例
Example #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();
}
?>