消除雜訊軟件一問

請問有沒有一些合法的、免費的消除雜訊軟件?

如有違反板規,本人願意刪除文章及接受應有的懲罰~

多謝解答#

http://www.neatimage.com/download.html

THIS ONE IS OK

The Demo edition of Neat Image is distributed as freeware for non-commercial use.