Fastest Comparison Method?

[blue-j]

I simply want to compare two images and know if they are visually different at all. (They will be the same size.)

I know of the AE compare metric, of IM image signatures... but what is the FASTEST method to do this?

Thanks for your consideration!

- J

[fmw42]

I believe that AE is the fastest compare metric.

Code: Select all

time compare -metric AE logo.png logox.png null:

0.108s

Code: Select all

time compare -metric PAE logo.png logox.png null:

0.113s

Code: Select all

time compare -metric rmse logo.png logox.png null:

0.113s

Code: Select all

time convert logo.png logox.png -compose difference -composite -format "%[fx:mean]" info:

0.132s

[blue-j]

thanks so much! I didn't know of the "time" command! : )