+ :type '(choice (const :tag "giftopnm, netpbm (GIF input only)"
+ "giftopnm %s | ppmnorm | pnmscale -width 48 -height 48 | ppmtopgm | pgmtopbm | pbmtoxbm | compface")
+ (const :tag "convert"
+ "convert -scale 48x48! %s xbm:- | xbm2xface.pl")
+ (string)))
+
+(defcustom gnus-convert-image-to-face-command
+ "convert -scale 48x48! %s -colors %d png:-"
+ "Command for converting an image to a Face.