NAME

signature - Methods to Compute a Digital Signature for an Image

SYNOPSIS

unsigned int SignatureImage( Image *image );

FUNCTION DESCRIPTIONS

SignatureImage

Method SignatureImage computes a digital signature from an image with an implementation of the NIST SHA-256 Message Digest algorithm. This signature uniquely identifies the image and is convenient for determining whether two images are identical.

The format of the SignatureImage method is:

unsigned int SignatureImage ( Image *image );

A description of each parameter follows:

image:
The image.