An　improved　image　enhancement　algorithm　based　on　genetic　algorithm　has　been　presented　and　applied　for　transmission　line　image　processing　in　this　paper,　in　which　fuzziness　is　served　as　the　optimization　method　of　the　image　enhancement　procedure.　Because　the　complexity　and　uncertainty　of　the　image　itself,　fuzzy　theory　has　been　used　in　the　image　processing.　In　this　process,　the　parameters　of　the　transformation　function　are　found　by　the　genetic　algorithm.　Thus,　a　new　kind　of　image　enhancement　method　is　proposed　by　combining　fuzzy　theory　with　the　genetic　algorithm.　Finally,　compared　with　the　traditional　image　enhancement　methods,　the　method　presented　in　this　paper　is　better　in　performance.