Generally,　most　image　encryption　algorithms　transform　original　images　into　texture-like　or　noise-like　ones.　Unfortunately　the　feature　like　texture　or　noise　is　just　a　hint　of　the　existence　of　encryption　for　attackers.　To　solve　this　problem,　Bao　and　Zhou　[2]　proposed　a　new　image　encryption　algorithm　which　can　transform　original　images　into　visually　meaningful　ones.　However,　the　resulting　cipher　images　have　some　texture　features　which　may　be　a　hint　of　the　existence　of　encryption　to　some　extent.　To　overcome　this　flaw,　we　present　a　new　visually　meaningful　image　encryption　algorithm　based　on　discrete　wavelet　transform　and　discrete　quantum　walks.　Numerical　simulation,　security　analysis　and　performance　comparison　demonstrate　that　our　proposal　is　superior　to　Bao　et　al.＇s　scheme.　It　promotes　the　combination　of　image　encryption　and　quantum　computation.　(C)　2017　Elsevier　Inc.　All　rights　reserved.