Converting tif to gif file size too big

[not2late]

Hi guys,
I tried to search this topic but couldn't get an answer.
I was using on our dec alpha ImageMagick 5.3.0 04/01/01 Q:16

A simple conversion from a file size of 20KB tif was 50KB gif.

After the upgrade to the latest ImageMagick version on a suse blade, the new gif file is about 4 MB in size.

Try this one 16KB: http://www.mys.co.jp/MSA25.tif

A conversion on the new system gives me 4MB size but on the old system gives me 25KB

/usr/bin/convert MSA25.tif MSA25.gif

I want to keep the same size but not sure what is wrong.

Thanks

[fmw42]

Hi guys,
I tried to search this topic but couldn't get an answer.
I was using on our dec alpha ImageMagick 5.3.0 04/01/01 Q:16

A simple conversion from a file size of 20KB tif was 50KB gif.

After the upgrade to the latest ImageMagick version on a suse blade, the new gif file is about 4 MB in size.

Try this one 16KB: http://www.mys.co.jp/MSA25.tif

A conversion on the new system gives me 4MB size but on the old system gives me 25KB

/usr/bin/convert MSA25.tif MSA25.gif

I want to keep the same size but not sure what is wrong.

Thanks

Try adding -depth 8

/usr/bin/convert MSA25.tif -depth 8 MSA25.gif

[not2late]

tried that already as I have seen it recommended in other posts but no luck: /usr/bin/convert MSA25.tif -depth 8 MSA25.gif

Can someone please try it? I want to know if where to look. In my installation or in how to use imagemagick convert.

Thanks

[magick]

We're using ImageMagick 6.4.5-7 and your command produces a GIF image at 284085 bytes.

[not2late]

Thank you. it must be something with our installation. We are on Suse 9 and can't upgrade the OS at this point. Have no clue where can I look.

The generated image is 4 MB in size. It can be seen with any viewer. So the conversion is right but the size is big.

Is there anything you recommend I should check?

[not2late]

We were able to compile 6.4.5 on suse 9. Everything is working fine now.

Thank you very much

[anthony]

WARNING: be careful as a known bug in the recent versions causes the dither to reduce the colors in a GIF image is a much smaller number, whcih naturally results in a smaller image size.

As you are converting from a 24 bit direct color source to a 8 bit pallette color image, you probably should get about 256 colors in the final image. if you get about 64 colors, then the image is degraded due to the bug.

The bug is being worked on, and will hopefully be fixed soon.