you mean remove parametrs "-filter Blackman -unsharp 1.0x1.0+0.5 -unsharp 1.0x1.0+0.5 -modulate 110,110 -contrast -enhance" ? or remove all "/usr/local/bin/convert -filter Blackman -unsharp 1.0x1.0+0.5 -unsharp 1.0x1.0+0.5 -modulate 110,110 -contrast -enhance"