# Why model maker can only create the model from the label map in range 0 to 255?

**URL:** <https://discourse.slicer.org/t/why-model-maker-can-only-create-the-model-from-the-label-map-in-range-0-to-255/25158>\
**Category:** Support\
**Created:** [September 8, 2022, 2:11pm UTC](https://discourse.slicer.org/t/why-model-maker-can-only-create-the-model-from-the-label-map-in-range-0-to-255/25158 "2022-09-08T14:11:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wpgao](https://avatars.discourse-cdn.com/v4/letter/w/8e8cbc/32.png) [@wpgao](https://discourse.slicer.org/u/wpgao)\
**Post date:** [September 8, 2022, 2:11pm UTC](https://discourse.slicer.org/t/why-model-maker-can-only-create-the-model-from-the-label-map-in-range-0-to-255/25158/1 "2022-09-08T14:11:41Z")

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In some atlases, there may be more than 255 structures were labeled or some structures were labeled larger than 255. ModelMaker cannot create the models with label larger than 255. Is there any solution? Thanks!

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [September 8, 2022, 4:22pm UTC](https://discourse.slicer.org/t/why-model-maker-can-only-create-the-model-from-the-label-map-in-range-0-to-255/25158/2 "2022-09-08T16:22:00Z")

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Model maker is a very old module, and I am not sure if it is maintained. Use the segmentations module to first convert your atlases to segmentation objects and then export the segmentation as models.

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**Author:** ![wpgao](https://avatars.discourse-cdn.com/v4/letter/w/8e8cbc/32.png) [@wpgao](https://discourse.slicer.org/u/wpgao)\
**Post date:** [September 10, 2022, 3:08pm UTC](https://discourse.slicer.org/t/why-model-maker-can-only-create-the-model-from-the-label-map-in-range-0-to-255/25158/3 "2022-09-10T15:08:21Z")

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Thanks!  
It works. However, when the label is larger than 255, the segment name shows “invalid” in the segmentation module.