Don’t think so. A filter can blur, and in theory can also unblur. But in practice, cannot. Reminds me of this disturbing case… https://www.minnpost.com/politi

Don’t think so. A filter can blur, and in theory can also unblur. But in practice, cannot. Reminds me of this disturbing case… https://www.minnpost.com/politics-policy/2007/11/you-can-swirl-you-cant-hide/ https://www.minnpost.com/politics-policy/2007/11/you-can-swi...