The　topic　of　super-resolution　image　reconstruction　has　recently　received　considerable　attention　among　the　research　community.　Super-resolution　image　reconstruction　methods　attempt　to　create　a　single　high-resolution　image　from　a　number　of　low-resolution　images　(or　a　video　sequence).　The　method　of　projections　onto　convex　sets　(POCS)　for　super-resolution　image　reconstruction　attracts　many　researchers＇　attention.　In　this　paper,　we　propose　an　improvement　to　reduce　the　amount　of　Gibbs　artifacts　presenting　on　the　edges　of　the　high-resolution　image　reconstructed　by　the　POCS　method.　The　proposed　method　weights　the　blur　PSF　centered　at　an　edge　pixel　with　an　exponential　function,　and　consequently　decreases　the　coefficients　of　the　PSF　in　the　direction　orthogonal　to　the　edge.　Experiment　results　show　that　the　modification　reduces　effectively　the　visibility　of　Gibbs　artifacts　on　edges　and　improves　obviously　the　quality　of　the　reconstructed　high-resolution　image.　©　2008　Higher　Education　Press.