Legacy ImageMagick Discussions Archive

I posted the image at
http://yong321.freeshell.org/temp/4E5D_yong3.gif

It's a resize but it also squeezes the image thinner. A human can identify it with 4E5D.gif and I hope some software can too.

I'll do some reading on Fourier Descriptors. Found your reply to a similar request
http://www ...

I tested fmw42's advice and used rmse metric (4E5D_yong3.gif is the same as 4E5D_yong.png except it was resized):

C:\temp>compare -metric rmse 4E5D_yong3.gif 4E5D.gif null:
58.5 (0.229412)

C:\temp>compare -metric rmse 4E5D_yong3.gif 4E5C.gif null:
60.5834 (0.237582)

Ideally, I would like to see ...

I resized one to be the same as the other. "compare" generates a new image that pretty much looks like one of the two. What I would like the result to be is something like a report "The outlines in the two images are xxx percent similar", instead of (apparently) an image as a result of pixel-by ...

I'm looking for a program to compare simple line art-style images. For example, the program should tell me
http://www.zdic.net/pic/zy/xz2/4E5D.gif
and
http://yong321.freeshell.org/temp/4E5D_yong.PNG
are very similar (regardless image size), and both are very different from
http://www.zdic.net/pic/zy ...