Midget and OFF units contribute most to high-pass, nonlinear decoding. (A) Representative high-pass images with their corresponding nonlinear decoded versions using all, ON, OFF, ON Midget, OFF midget, midget, and parasol units, respectively. (B) Comparison of test correlations between linear and nonlinear high-pass decoding versus cell type. (C) Representative true images with their corresponding combined decoder outputs using all, ON, OFF, ON Midget, OFF midget, midget, and parasol units, respectively. (D) Comparison of test correlations for the combined decoded images per cell type. Nonlinear decoding most significantly improves midget and OFF cell high-pass and combined decoding but does not bring any significant benefit to parasol and ON cell decoding of high-pass details.