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(PECL imagick 2.0.0)
Imagick::setSizeOffset — Sets the size and offset of the Imagick object
$columns
, int $rows
, int $offset
)Sets the size and offset of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。
columns
The width in pixels.
rows
The height in pixels.
offset
The image offset.
成功时返回 TRUE
。