Length Estimator

Load Picture...
Data
Levels of gray
Box size
Line thickness

Estimation
Error distribution
Error standard deviation
Confidence level

Testing
H0 value
Alternative

× Welcome! Click on Load picture (must be black and white JPEG), choose start and end points, set data parameters and click on Prepare data. After that, you can perform length evaluation and hypothesis testing.
Start point: x
End point: x
Status: waiting...