C:\Program Files\ImageMagick-6.8.0-Q16>convert dragon.gif'[64x64]' read_dragon.gif
convert.exe: unable to open image `dragon.gif'[64x64]'': No such file or directo
ry @ error/blob.c/OpenBlob/2638.
convert.exe: unable to open module file `C:\Program Files\ImageMagick-6.8.0-Q16\
modules\coders\IM_MOD_RL_GIF'[64X64]'_.dll': No such file or directory @ warning
/module.c/GetMagickModulePath/683.
convert.exe: no decode delegate for this image format `dragon.gif'[64x64]'' @ er
ror/constitute.c/ReadImage/550.
convert.exe: no images defined `read_dragon.gif' @ error/convert.c/ConvertImageC
ommand/3078.
ただし、以下は問題なく機能します。
convert dragon.gif dragon.png