Imagick
PHP Manual

Imagick::flipImage

(PECL imagick 2.0.0)

Imagick::flipImage — Creates a vertical mirror image

Description

bool Imagick::flipImage ( void )

Creates a vertical mirror image by reflecting the pixels around the central x-axis.

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Imagick
PHP Manual