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How to decrease the size of animations by changing the source images? |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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I am making animated wallpapers for one of my customers MediaPlazza. They want animated wallpapers according to their specifications. I need to reduce the size of the animations to fullfill some of their demands for filesize and dimension. I only need to decrease the file size with some %. I am working with Jasc Paint Shop Pro, but whatever I do to adjust the source images, like add blur, the file size of the animation doesn't become smaller.
I have converted the JPG-source images to gifs and reduced the color depth to only 16 colors, but the gif-animation still doesn't get smaller. What can I do with the source images to get a smaller gif-animation? |
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Jools
Joined: May 21, 2003
Posts: > 500
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I use Macromedia Fireworks for optimising animated GIFs... but if you've got it down as small as possible by reducing colours, the only way you'll get it any smaller is by reducing the number of frames.
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MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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OK, the strange thing was when I reduced the number of colors to only 16, the resulting gif-animation increased in size. I can't understand why. |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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How many frames are normal for animated wallpaper? I have 5 in mine, and if I reduce the number of frames too much, it won't look good. |
kdskamal
Joined: Apr 28, 2005
Posts: 197
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Reduce the number of frames..also try reducing the canvas size :-l
This message was posted from a T610 |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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I just think that it must be some way to reduce the image complexity in Paint Shop Pro, so the resulting animations become smaller. But whatever I try, the resulting animation becomes bigger. My soruce images are lotus images, like the one below.
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ThreeX
Joined: Dec 21, 2002
Posts: > 500
From: Sweden
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Have you tried juggling the settings in Animation Shop?
There´s a slider with settings ranging from abysmal to very nice(big)  I have resized various .gif´s for phone use, ie Z1010 exploding cube to T610 screen size with acceptable to good results, but i resized the whole animation..
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Jools
Joined: May 21, 2003
Posts: > 500
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I think the problem may be the fact that you are re-compressing your original JPEGs to GIF format. What's happening is the GIF compression is trying to include the JPEG compression artifacts (you know the fringing you get when colours change in the image). This will increase the file size quite a bit.
The reason your animation got larger with fewer colours is that the software dithers two colours to make a third, which looks nicer but doesn't compress very well at all.
GIF compression works best on areas of flat colour. If you can get the original images before they were JPEG compressed you'll get better results. Also, try cleaning up the image as much as possible, remove any dithering, remove any stray pixels in other shades within the flat colour areas. Rough edges don't compress as well as smooth or straight edges.
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MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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ThreeX, which slider do you mean? Do you mean "Animation Quality versus Output size" in the output wizard? I have already set that to the lowest output size. |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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JoolsG4, I will try what you suggested later this evening. My source images are JPEGS's capured from a Java animation. I have also converted them to BITMAPS, but then the resulting gif-animation also got bigger. |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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JoolsG4, I think the only way I could implement the things you suggested is if I did the screen capture to Bitmaps instead of JPEG's. Do you think I would get a smaller animation if I had Bitmap source images instead of JPEG's? |
MobileVisuals
Joined: Mar 24, 2005
Posts: 38
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When I changed my motion capture program to make bitmap source images instead of JPG's the size of the resulting gif-animation decreased with about 25%. But I found nothing in Paint Shop Pro that decreased the gif-filesize. ThreeX, what settings in Animation shop did you mean? |
N-er-G
Joined: Jul 11, 2004
Posts: 329
From: Romania
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I only need a program: I input a gif file, the output is a gif too, and I can resize de dimensions, for example 2 a K700i's screen.
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RayKnight
Joined: Apr 05, 2004
Posts: 484
From: Dominican Republic
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@Nerg: if you get that program, let me know pls, cos i need it too!!!!
[addsig] |
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Posted: 2005-05-03 13:09
