# Geodesic active contour with python
**URL:** https://discourse.itk.org/t/geodesic-active-contour-with-python/2386
**Category:** Beginner Questions
**Created:** [November 6, 2019, 3:19pm UTC](https://discourse.itk.org/t/geodesic-active-contour-with-python/2386 "2019-11-06T15:19:53Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@abir](https://discourse.itk.org/u/abir)
#### Post date: [November 6, 2019, 3:19pm UTC](https://discourse.itk.org/t/geodesic-active-contour-with-python/2386/1 "2019-11-06T15:19:53Z")
i tried to implement the GeodesicActiveContourImageFilter
but every time i try to run it i get this message
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### Author:  [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)
#### Post date: [November 6, 2019, 5:40pm UTC](https://discourse.itk.org/t/geodesic-active-contour-with-python/2386/2 "2019-11-06T17:40:24Z")
Hi @abir,
Are there more details about how the script is being executed?
From the error message, it looks like the command line arguments need to be passed to the script.
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### Author:  [@abir](https://discourse.itk.org/u/abir)
#### Post date: [November 6, 2019, 9:22pm UTC](https://discourse.itk.org/t/geodesic-active-contour-with-python/2386/3 "2019-11-06T21:22:36Z")
thank you for the reply
so you mean I should pass the value associated with the inputfilename ,the outputfilename, the threshold and the level ?
Se
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### Author:  [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)
#### Post date: [November 6, 2019, 9:39pm UTC](https://discourse.itk.org/t/geodesic-active-contour-with-python/2386/4 "2019-11-06T21:39:23Z")
Yes.