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(PECL gmagick >= Unknown)
Gmagick::newimage — Creates a new image
$width
, int $height
, string $background
[, string $format
] )Creates a new image with the specified background color
width Width of the new image
height Height of the new image
background The background color used for this image (as float)
format Image format.
The Gmagick object on success
错误时抛出 GmagickException。