PHP Manual: Sets the size and offset of the Imagick object

Description

bool Imagick::setSizeOffset ( int $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. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

Parameters

columns: The width in pixels.
rows: The height in pixels.
offset: The image offset.

Return Values

Returns TRUE on success.