# How to convert the planar contour to binary label without losing resolution?

**URL:** <https://discourse.slicer.org/t/how-to-convert-the-planar-contour-to-binary-label-without-losing-resolution/33022>\
**Category:** Support\
**Created:** [November 25, 2023, 6:00pm UTC](https://discourse.slicer.org/t/how-to-convert-the-planar-contour-to-binary-label-without-losing-resolution/33022 "2023-11-25T18:00:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jiuling\_SHEN](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jiuling_shen/32/67074_2.png) [@Jiuling\_SHEN](https://discourse.slicer.org/u/Jiuling_SHEN)\
**Post date:** [November 25, 2023, 6:00pm UTC](https://discourse.slicer.org/t/how-to-convert-the-planar-contour-to-binary-label-without-losing-resolution/33022/1 "2023-11-25T18:00:38Z")

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When I added the structure (planar contour) of RT to the 3D slicer, and wanted to edit the body contour, 3D Slicer asked me to convert planar contour to binary label. I found that the resolution was lost too much. How can I improve the resolution of binary label? Reduce distortion of planar contour?  
Thanks