Legacy ImageMagick Discussions Archive

Can you explain the "null:" function?

thank yu so much, by the way I've solved with this script:

#!/bin/bash
for((i=0; i<10; i++)); do
touch file$i.log
convert x$i.jpg y$i.jpg -evaluate-sequence Mean xy$i.jpg
done


thanks to you now I can try also with this one

#!/bin/bash
for((i=0; i<10; i++)); do
touch file$i.log
convert x$i.jpg ...

can someone help me to create a shell script like this one in Java?

I'm new to imagemagick, I'm using ImageMagick 6.6.7-9 Q16 version.
Finally I was able two averaging a set of images with the command

convert -average image*.jpg output.jpg

Now I would to know if is it possiblo to convert, automatically, images from two different sets, somthing that can automate ...