more clearly leaves masked pixels alone during convolution
more clearly leaves masked pixels alone during convolution

jbkalmbach/kbmod,DiracInstitute/kbmod,DiracInstitute/kbmod,jbkalmbach/kbmod,jbkalmbach/kbmod,jbkalmbach/kbmod,DiracInstitute/kbmod,DiracInstitute/kbmod