Sharpening\gradient filter\gradient.asv ..........\...............\gradient.m ..........\...............\sir.JPG ..........\laplacian filter\laplacian.asv ..........\................\laplacian.m ..........\unsharp masking\unsharp_masking.asv ..........\...............\unsharp_masking.m ..........\gradient filter ..........\laplacian filter ..........\unsharp masking Sharpening