Re:Unredacter: Never ever use pixelation as a redaction tech...
by BoorishBears on Saturday December 17, 2022 @11:10PM
(#34034976)
That's not the point the other posts are making.
They're saying that before encoding the red dot could have been X pixels wide, and to the naked eye it would seem that after encoding it's still only X pixels wide... but due to compression artifacts it may now actually be affecting an area X+Y pixels wide. So only covering X pixels could leak Y pixels of information.
It honestly sounds a bit paranoid to me, but it's definitely possible.
They're saying that before encoding the red dot could have been X pixels wide, and to the naked eye it would seem that after encoding it's still only X pixels wide... but due to compression artifacts it may now actually be affecting an area X+Y pixels wide. So only covering X pixels could leak Y pixels of information.
It honestly sounds a bit paranoid to me, but it's definitely possible.