# active contours for a specific image

**URL:** <https://discourse.itk.org/t/active-contours-for-a-specific-image/972>\
**Category:** Uncategorized\
**Created:** [June 1, 2018, 11:29am UTC](https://discourse.itk.org/t/active-contours-for-a-specific-image/972 "2018-06-01T11:29:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SylvainArd](https://discourse.itk.org/letter_avatar_proxy/v4/letter/s/e47774/32.png) [@SylvainArd](https://discourse.itk.org/u/SylvainArd)\
**Post date:** [June 1, 2018, 11:29am UTC](https://discourse.itk.org/t/active-contours-for-a-specific-image/972/1 "2018-06-01T11:29:54Z")

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Hello,  
I have this image in input : [http://sylvain-ard.fr/temp/CONTOURS\_LEAFLET1.jpg](http://sylvain-ard.fr/temp/CONTOURS_LEAFLET1.jpg)  
a leaf so  
and I want to apply this algorithm : [https://itk.org/ITKExamples/src/Segmentation/LevelSets/SegmentWithGeodesicActiveContourLevelSet/Documentation.html](https://itk.org/ITKExamples/src/Segmentation/LevelSets/SegmentWithGeodesicActiveContourLevelSet/Documentation.html)  
to close and fill the contour  
I see that I should use a negative propagation scaling but I don’t know what to do exactly.  
Could you help me please ?  
Thank you.  
Best regards

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<div class="post-metadata">

**Author:** ![SylvainArd](https://discourse.itk.org/letter_avatar_proxy/v4/letter/s/e47774/32.png) [@SylvainArd](https://discourse.itk.org/u/SylvainArd)\
**Post date:** [June 9, 2018, 5:31pm UTC](https://discourse.itk.org/t/active-contours-for-a-specific-image/972/2 "2018-06-09T17:31:09Z")

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up please