> -----Original Message----- > From: Andrew Errington [mailto:[EMAIL PROTECTED] > Sent: Friday, 11 August 2006 3:41 p.m. > To: [email protected] > Subject: Re: diff for images > > <snip> > > Prompted by a couple of "use ImageMagick" responses I've > fiddled about > > some more and come up with 'convert a b -compose difference > -composite' > > which seems to do the trick. > > > > Was this what you were thinking? > > No, they were probably thinking of ImageMagick's "compare" command. > > A
I was thinking of convert actually - I've found compare to be useful for a mathematical analysis of differences but not so useful to produce a "differential" image. Brett.
