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Imagick::getImageSignature

Generates an SHA-256 message digest ()
string Imagick::getImageSignature ( )

Warning:

This function is currently not documented; only the argument list is available.

Warning:

This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

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

Parameters

Return Values

Returns a string containing the SHA-256 hash of the file, throwing an ImagickException on error.