diff --git a/images/d-lpf=off.png b/d-lpf=off.png similarity index 100% rename from images/d-lpf=off.png rename to d-lpf=off.png diff --git a/images/d_lpf=100hz.png b/d_lpf=100hz.png similarity index 100% rename from images/d_lpf=100hz.png rename to d_lpf=100hz.png diff --git a/images/d_lpf_comparison.png b/images/d_lpf_comparison.png new file mode 100644 index 0000000..80ab58b Binary files /dev/null and b/images/d_lpf_comparison.png differ