# White strikes in constructed volume

**URL:** <https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581>\
**Category:** Support\
**Tags:** volume\
**Created:** [April 23, 2019, 9:25pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581 "2019-04-23T21:25:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![zoez](https://avatars.discourse-cdn.com/v4/letter/z/bb73d2/32.png) [@zoez](https://discourse.slicer.org/u/zoez)\
**Post date:** [April 23, 2019, 9:25pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581/1 "2019-04-23T21:25:50Z")

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Hello,

I have generated a volume by running VolumeReconstructor.exe with a saved mha file. However, the resulted volume has many white strikes in them, and these white strikes are not present in the original mha file. I’m wondering if you have any suggestions on how to resolve this?

I’m suspecting that the problem might be caused by each pixel in the images having 4 bytes. Does the VolumeReconstructor algorithm support images with 4 color channels?

 ![Screenshot%20(8)](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/8/8855cb9fc7becdfa25edb14ae2abf11a98582975.png)

Thanks,  
Zoe

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**Author:** ![zoez](https://avatars.discourse-cdn.com/v4/letter/z/bb73d2/32.png) [@zoez](https://discourse.slicer.org/u/zoez)\
**Post date:** [April 23, 2019, 9:27pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581/2 "2019-04-23T21:27:03Z")

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Here’s a screenshot of the original image in slicer:

 ![Screenshot%20(9)](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/2/e227335a1fd658fb52992dbea4b19093cd2155c3.png)

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [April 24, 2019, 12:42pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581/3 "2019-04-24T12:42:54Z")

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VolumeReconstructor.exe should be able to handle color images by converting them to grayscale.

I’ll take a look. Could you upload your config file and Plus log somewhere?

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<div class="post-metadata">

**Author:** ![zoez](https://avatars.discourse-cdn.com/v4/letter/z/bb73d2/32.png) [@zoez](https://discourse.slicer.org/u/zoez)\
**Post date:** [April 24, 2019, 9:54pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581/4 "2019-04-24T21:54:07Z")

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Hello Kyle,

Please find the config file, the original mha recording and PlusLog file [here](https://drive.google.com/drive/folders/1WaFab3bI45xS3dGyNIaYxu-9WeGgr3YO?usp=sharing).

Thanks,  
Zoe

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<div class="post-metadata">

**Author:** ![zoez](https://avatars.discourse-cdn.com/v4/letter/z/bb73d2/32.png) [@zoez](https://discourse.slicer.org/u/zoez)\
**Post date:** [April 29, 2019, 7:30pm UTC](https://discourse.slicer.org/t/white-strikes-in-constructed-volume/6581/5 "2019-04-29T19:30:01Z")

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Hello Kyle,

I tried converting the images to grayscale before feeding into the VolumeReconstructor app and it worked.

Thanks.  
Zoe