You can do this from within DDMS Monitor (and also Eclipse or Android Studio) with the regular expression input box and negative look-ahead assertions, for example I am excluding a lot of noise from my log with the following:
tag:^(?!(WifiMulticast|WifiHW|MtpService|PushClient))
(The “tag:” isn’t part of the regular expression, but tells LogCat to only apply the regex to the Tag field. If you use this trick in a saved filter then put just the regular expression in the “Tag” input box, and omit the “tag:” prefix)
In Android Studio’s logcat monitor pane, you can set up a saved filter for this by opening the dropdown in the upper right (it may have “Show only selected application” selected) and selecting Edit Filter Configuration. Create a new logcat filter and put ^(?!(WifiMulticast …etc. )) in the Log Tag box, with the Regex checkbox checked.