Nsignature - Methods to Compute a Digital Signature for an Image9/


NAME



?signature - Methods to Compute a Digital Signature for an Image




(

SYNOPSIS



Cvoid SignatureImage( Image *image );




B

FUNCTION DESCRIPTIONS






4

SignatureImage



ôMethod SignatureImage computes a digital signature from an image. This signature uniquely identifies the image and is convenient for determining if the colormap of a sequence of images is identical when animating. The digital signature is from 'RSA Data Security FMD5 Digest Algorithm described in Internet draft &[MD5], July 1992.

+The format of the SignatureImage method is:^

void SignatureImage ( Image *image );


=A description of each parameter follows:

7

image:


)The address of a structure of type Image.