# Using LabelIntensityStatisticsImageFilter in SimpleITK

**URL:** https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910
**Category:** Engineering
**Tags:** python, simpleitk
**Created:** [February 25, 2021, 7:58pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910 "2021-02-25T19:58:43Z")
**Posts on this page:** 7
**Page:** 1

<div class="post-metadata">

### Author: ![Diego\_C](https://discourse.itk.org/user_avatar/discourse.itk.org/diego_c/32/279_2.png) [@Diego\_C](https://discourse.itk.org/u/Diego_C)
#### Post date: [February 25, 2021, 7:58pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/1 "2021-02-25T19:58:43Z")

</div>

Hi!

I am looking for an example of how to use `LabelIntensityStatisticsImageFilter`, to get stats from my connected components.

I have this code:

```
cc = sitk.ConnectedComponentsImageFilter()
im_cc = cc.Execute(image)

stats = sitk.LabelIntensityStatisticsImageFilter()
results = stats.Execute(im_cc)

```

but I am getting this error:

```
TypeError: Execute() missing 1 required positional argument: 'featureImage'

```

I don’t know what the additional parameter featureImage should be.

Thanks!

---

<div class="post-metadata">

### Author: ![zivy](https://discourse.itk.org/user_avatar/discourse.itk.org/zivy/32/1726_2.png) [@zivy](https://discourse.itk.org/u/zivy)
#### Post date: [February 25, 2021, 8:22pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/2 "2021-02-25T20:22:50Z")

</div>

```auto
results = stats.Execute(image, im_cc)

```

---

<div class="post-metadata">

### Author: ![Diego\_C](https://discourse.itk.org/user_avatar/discourse.itk.org/diego_c/32/279_2.png) [@Diego\_C](https://discourse.itk.org/u/Diego_C)
#### Post date: [February 26, 2021, 3:44am UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/3 "2021-02-26T03:44:43Z")

</div>

Hi @zivy

I see, so the stats are taken on the original image.  
I just wanted to get the sizes of my connected components withouth caring too much about the original image. How can I do this?

Thanks,

Diego

---

<div class="post-metadata">

### Author: ![blowekamp](https://discourse.itk.org/user_avatar/discourse.itk.org/blowekamp/32/79_2.png) [@blowekamp](https://discourse.itk.org/u/blowekamp)
#### Post date: [February 26, 2021, 1:09pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/4 "2021-02-26T13:09:41Z")

</div>

Can you please define what you mean by “size”?

---

<div class="post-metadata">

### Author: ![zivy](https://discourse.itk.org/user_avatar/discourse.itk.org/zivy/32/1726_2.png) [@zivy](https://discourse.itk.org/u/zivy)
#### Post date: [February 26, 2021, 2:41pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/5 "2021-02-26T14:41:05Z")

</div>

Hi @Diego_C ,

So you’re not interested in the intensity statistics under each label, you are interested in the physical size of the region the label occupies? If yes, then the relevant filter is [LabelShapeStatisticsImageFilter](https://simpleitk.org/doxygen/v2_0/html/classitk_1_1simple_1_1LabelShapeStatisticsImageFilter.html) and not `LabelIntensityStatisticsImageFilter`.

---

<div class="post-metadata">

### Author: ![Diego\_C](https://discourse.itk.org/user_avatar/discourse.itk.org/diego_c/32/279_2.png) [@Diego\_C](https://discourse.itk.org/u/Diego_C)
#### Post date: [March 2, 2021, 9:52pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/6 "2021-03-02T21:52:05Z")

</div>

The number of voxels for each connected component in the label image obtained as the result of the `ConnectedComponentsImageFilter`

---

<div class="post-metadata">

### Author: ![Diego\_C](https://discourse.itk.org/user_avatar/discourse.itk.org/diego_c/32/279_2.png) [@Diego\_C](https://discourse.itk.org/u/Diego_C)
#### Post date: [March 2, 2021, 9:52pm UTC](https://discourse.itk.org/t/using-labelintensitystatisticsimagefilter-in-simpleitk/3910/7 "2021-03-02T21:52:48Z")

</div>

That’s it @zivy thank you very much 🙏