Spatial Frequency Analyzer

VISION SCIENCESAMPLE (20/20 VISION)

Vision profile

Select a contrast sensitivity profile to see how different eyes experience the same image. Each profile changes which spatial frequencies are visible.

About the scene

Roughly how wide is the scene and how far away would you be looking at it? This lets us show results in cycles per degree — the same units used in contrast sensitivity testing. Ballpark numbers are fine.

Stop Sign
6 ft wide · 50 ft away

Your own photo

Drop or click to upload

scan line
↕ Drag the green line up or down to scan any row
Brightness Along the Line