SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
The advanced noise filter NSF4v decomposes the input image into low-frequency, mid-frequency, and high-frequency bands first and then filter out the noise in frequency domain. NSF4v can adapt its noise filtering strength to local image intensity according to the user programmable noise threshold registers. NSF4 is also able to adjust its strength according to the amount of previously applied lens shading correction gains with a user programmable approximate radial model.