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old version :
Version: ImageMagick 6.2.8 05/07/12 Q16 file:/usr/share/ImageMagick-6.2.8/doc/index.html
convert lengtu.gif -coalesce -bordercolor none -border 0 -sample '200x200' -layers Optimize lengtu_old.gif
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works well
new version:
Version: ImageMagick 6.9.1-1 Q16 x86_64 2015-04-14 http://www.imagemagick.org
/usr/local/ImageMagick/bin/convert lengtu.gif -coalesce -bordercolor none -border 0 -sample '200x200' -layers Optimize lengtu_new.gif
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works not well
why ?How to deal?