Imagick::shadeImage

(PECL imagick 2.0.0)

Imagick::shadeImage — Creates a 3D effect

说明

bool Imagick::shadeImage ( bool $gray , float $azimuth , float $elevation )

Shines a distant light on an image to create a three-dimensional effect. You control the positioning of the light with azimuth and elevation; azimuth is measured in degrees off the x axis and elevation is measured in pixels above the Z axis. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。

参数

gray: A value other than zero shades the intensity of each pixel.
azimuth: Defines the light source direction.
elevation: Defines the light source direction.

返回值

成功时返回 TRUE 。

错误／异常

Throws ImagickException on failure.

范例

Example #1 Imagick::shadeImage()

  <?php
 function  shadeImage ( $imagePath ) {
     $imagick  = new \ Imagick ( realpath ( $imagePath ));
     $imagick -> shadeImage ( true ,  45 ,  20 );
     header ( "Content-Type: image/jpg" );
    echo  $imagick -> getImageBlob ();
}

 ?>