I understand this line (I look in the doc) but when I tried it, it gave me a segfault. I think it comes from the fact that I don't have the newest version of IM (6.3.7) so I change the order a little ^^anthony wrote: NOTE: in my version, the following line...This creates the 'black' canvas AFTER all the distort processing was done. It then 'swaps' this black image, with the original image that was being cloned, so it is now at the start of the image sequence. The original image is then deleted.
Code: Select all
-size 1329x1026 xc:black -swap 0 +delete \
At the start of the line the image sequence in memory is
original_cover, front, spine, back
At the end of the line it is
black_canvas, front, spine, back
Ready for the -layer operator to merge them all together.
Thank you for the explanation on parenthesis. I think I get the gist of them.
I make some test and -quality 95 and -depth 8 give me the file size for the result. Is there something else I can do to make the result lighter ?