✨ Simulator EP03_10: Unsharp Masking (USM)
g = f + k · m
Adjust the gain factor k, observe the complete enhancement pipeline (blurring, high-frequency mask) and hover over the result.
Gain factor k:
k = 1.0
① Original Image f
5×5 pixel matrix
② Blurred f̄
3 × 3 average
③ Mask m
m = f − f̄ (High Frequencies)
④ Result g = f + 1.0·m
Hover to inspect
Legend:
3×3 neighborhood
Central Pixel
Border (Copied)
Positive/Negative Mask
Hover over an inner pixel of the result to trace the full pipeline.
Description: Figure 3.35: EP03_10 Simulator: Unsharp Masking (USM)