# MONAI Label - unable to get the target\_spacing and spatial\_size using heuristic\_planner

**URL:** <https://discourse.slicer.org/t/monai-label-unable-to-get-the-target-spacing-and-spatial-size-using-heuristic-planner/24391>\
**Category:** Support\
**Tags:** monai\
**Created:** [July 19, 2022, 12:00pm UTC](https://discourse.slicer.org/t/monai-label-unable-to-get-the-target-spacing-and-spatial-size-using-heuristic-planner/24391 "2022-07-19T12:00:03Z")\
**Posts on this page:** 1\
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**Author:** ![hourglassnam](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/hourglassnam/32/11796_2.png) [@hourglassnam](https://discourse.slicer.org/u/hourglassnam)\
**Post date:** [July 19, 2022, 1:28pm UTC](https://discourse.slicer.org/t/monai-label-unable-to-get-the-target-spacing-and-spatial-size-using-heuristic-planner/24391/3 "2022-07-19T13:28:20Z")

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Hello!! Thank you so much for your reply!

The file I am working with is a micro-CT of a plant seed sample, and I am trying to separate the morphology inside to get the volumetric data of each part.

So the pathology app did not fit my purpose.

I needed to change the labels and disable the use\_pretrained\_model so it would not use the given labels.

When I changed the labels and disable the use\_pretrained\_model so it would not use the given labels in “MONAILabel/monailabel/deepedit/multilabel/transforms.py” and “MONAILabel/sample-apps/radiology/lib/configs/deepedit.py”, the changes weren’t reflected on the 3D Slicer and gave me the original label such as spleen, liver and etc.

That is why I had to copy the radiology folder and make a new one.

I think the term histology may have caused the confusion.

Sorry about that.

I started the server(big thanks to you) and successfully changed the labels using the given information from the [forum](https://discourse.slicer.org/t/how-to-start-with-monailabel-for-new-models/21063/64).

> $Env:PATH += “;C:\Users\njy95\MONAILabel\monailabel\scripts”
> 
> monailabel start\_server --app C:/Users/njy95/MONAILabel/sample-apps/histology --studies C:/Users/njy95/datasets/Task11\_BR/imagesTr --conf models deepedit --port 8000 --host 127.0.0.1

However, I don’t know my dataset’s target spacing and spatial size for the pretraining process.

To be honest, I don’t clearly understand what target\_spacing and spatial\_size are. I am assuming this is different from the actual pixel value and was hoping that the heuristic planner would give be recommended value.

That is why I used --conf heuristic\_planner true, but it did not work.

Can you give me a advise on what the problem could be?

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