<IfModule mod_ext_filter.c> # 画像圧縮フィルタを定義 ExtFilterDefine jpeg-filter mode=output intype=image/jpeg cmd="/opt/bin/convert -quality 15 +profile \"*\" jpeg:- jpeg:-" ExtFilterDefine png-filter mode=output intype=image/png cmd="/opt/bin/convert -colors 16 -colorspace Transparent -quality 90 +dither +profile \"*\" png:- png:-" ExtFilterDefine gif-filter mode=output intype=image/gif cmd="/opt/bin/conve