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StrongBeaver
StrongBeaver
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Reducing Animated GIF Significantly

Jan 1, 2012 1:41 PM

I have a 3.4 meg animated gif.  I was only able to reduce it to 1.8 megs.  Any solution, without reducing colors to shrink the animated gif to under 300K preferable ?

4252 Views   7 Replies   Latest reply: StrongBeaver, Jan 2, 2012 9:23 AM
 
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  • Noel Carboni
    20,988 posts
    Dec 23, 2006
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    1. Noel Carboni,
    Jan 1, 2012 1:46 PM   in reply to StrongBeaver
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    Most folks use a video format for a significantly large/long animation.

     

    How big is the image (horizontal pixels x vertical pixels)?

     

    How many frames?

     

    Is it made up of a lot of color complexity?

     

    -Noel

     
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  • StrongBeaver
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    2. StrongBeaver,
    Jan 1, 2012 6:39 PM   in reply to Noel Carboni
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    320x240 8bit - 186 frames. There isn't extreme color complexity.  I'd like to keep as much as possible.

     
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  • Noel Carboni
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    Dec 23, 2006
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    3. Noel Carboni,
    Jan 1, 2012 7:52 PM   in reply to StrongBeaver
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    That's moderately small, but with a large frame count.  I'm guessing there must be a fair bit of change between frames in order to get it up to the size you've reported.  GIF compression works best when exactly identical RGB values are maintained across large spaces in the image, and from frame to frame.

     

    Beyond possibly reducing the width and height if possible, I can only suggest fooling with the color table size and other parameters available to you in the Save for Web & Devices dialog and looking critically at the results.

     

    -Noel

     
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  • StrongBeaver
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    4. StrongBeaver,
    Jan 1, 2012 9:10 PM   in reply to Noel Carboni
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    I've done what you suggested and only got the file size down to about 1.8-1.6 megs a far cry from under 200K.

     

    What about 3rd party converters, do you know any you can suggest being the vast amount on the net?

     
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    5. Marian Driscoll,
    Jan 2, 2012 12:45 AM   in reply to StrongBeaver
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    What content requires 186 frames? What are you trying to show?

     

    A 200kb GIF at that size is usually ~12 frames, certainly not over 100.

     
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  • JJMack
    3,425 posts
    Jan 9, 2006
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    6. JJMack,
    Jan 2, 2012 4:55 AM   in reply to StrongBeaver
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    It is very hard to predict the size an animated gf will be. To many variables image complexity and complexity of the animation here is a 390x200 pixel size one that has 150 frames and has a file size of 157KB.  About the size you want yours to be.

     
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  • StrongBeaver
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    7. StrongBeaver,
    Jan 2, 2012 9:23 AM   in reply to JJMack
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    That animated gif is going to be 157K. It's just a single image with another animated image that probably ony has 3 colors.  I may have to look past animated gif.

     
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