imagemagick
I have an animation as a batch of .png files (100 files). The background is transparent in the source .png files. I want to convert them into a single animated gif. I have tried this command:
convert -delay 0 -loop 0 -alpha set *.png ani.gif
But the result is the following (green is the HTML page background):
How should I remove the previous frames from an every following one?
As a side note, I found that getting transparency was a bit tricky. Instead of using transparent, I had to use none.
convert -background none in.svg out.png
You can do it like this:
convert -delay 40 {1..9}.png -delay 300 10.png -delay 40 {11..14}.png animated.gif
Basically, you set the delay just before the image you want it to affect and it stays set until you change it.
If you want to set a variable delay, so that the first (i.e. black here) and the last frame (i.e. yellow here) are displayed longer, you can do this:
convert -size 300x200 xc:black xc:red xc:lime xc:blue xc:cyan xc:magenta xc:yellow -set delay '%[fx:t==(n-1) || t==0 ? 400 : 40]' result.gif
Best Answer
I've found
-dispose previous.UPDATE
OK,
convert -delay 0 -loop 0 -alpha set -dispose previous *.png ani.gif