SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Before data interpolation, a low pass filtering (LPF) operation is required on the input data. The following equation gives the LPF function. The equation is evaluated at pixel position di but neighbor pixels di-1 and di+1 are required. The gain value g is set up by the register RZi_V_LPF and RZi_H_LPF. Different gains are possible horizontally and vertically as well as for Luma and Chroma.