# I need to merge two diferent segmentations models

**URL:** <https://discourse.slicer.org/t/i-need-to-merge-two-diferent-segmentations-models/42967>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [May 16, 2025, 12:52pm UTC](https://discourse.slicer.org/t/i-need-to-merge-two-diferent-segmentations-models/42967 "2025-05-16T12:52:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Azambuja](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Azambuja](https://discourse.slicer.org/u/Azambuja)\
**Post date:** [May 16, 2025, 12:52pm UTC](https://discourse.slicer.org/t/i-need-to-merge-two-diferent-segmentations-models/42967/1 "2025-05-16T12:52:34Z")

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I have two different DICOM files, and they complement each other. I made the first segmentation in Slicer using the first model, then the second one, and now I need to complete my 3D model by merging the two segmentations. The second issue I haven’t been able to resolve is that I exported some files with 15% opacity, but in the OBJ and STL models, the segmentation with 15% opacity appears as 100% opacity.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [May 16, 2025, 12:54pm UTC](https://discourse.slicer.org/t/i-need-to-merge-two-diferent-segmentations-models/42967/2 "2025-05-16T12:54:14Z")

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You can drag-and-drop segments between segmentations in Data module. You can then merge the segments in Segment Editor module, using the “Logical operators” effect.