# vtkImageViewer2 and slab

**URL:** <https://discourse.vtk.org/t/vtkimageviewer2-and-slab/12975>\
**Category:** Development\
**Created:** [December 27, 2023, 1:55pm UTC](https://discourse.vtk.org/t/vtkimageviewer2-and-slab/12975 "2023-12-27T13:55:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![xjjgjmeng](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/x/2acd7d/32.png) [@xjjgjmeng](https://discourse.vtk.org/u/xjjgjmeng)\
**Post date:** [December 27, 2023, 1:55pm UTC](https://discourse.vtk.org/t/vtkimageviewer2-and-slab/12975/1 "2023-12-27T13:55:05Z")

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I use **vtkResliceImageViewer** or **vtkImageViewer2** to display a slice in a dicom sequence. How do I set the thickness and combination of the output slices? Just like `vtkImageReslice::SetSlabNumberOfSlices` and `vtkImageReslice::SetSlabModeToMean`