I need to include in my PowerPoint presentation an animation which has about 1000 frames. I know there is a possibility to optimize a GIF animation in such a way that each next frame contains only changed portion of an image as compared to the previous frame. But I do not know which programs are able to do this. I have tried GIF Movie Gear - it is good but saves only 10% by optimization. I think there must be better solutions. Can anybody recommend a tool?
I have tried Gifsicle 1.63 (command
-O2 -b -k 128 --careful anim.gif) and found that it generates a little bigger file than GIF Movie Gear and this file renders with artifacts in IrfanView but without artifacts in Power Point.