Imagick::getImageSignature

(PECL imagick 2.0.0)

Imagick::getImageSignature — Generates an SHA-256 message digest

string Imagick::getImageSignature ( void )

Generates an SHA-256 message digest for the image pixel stream.

Returns a string containing the SHA-256 hash of the file.

Lancia una ImagickException in caso di errore.