# IsoVolume on RGB video frames sequence volume

**URL:** https://discourse.itk.org/t/isovolume-on-rgb-video-frames-sequence-volume/474
**Category:** Beginner Questions
**Created:** [December 1, 2017, 2:12am UTC](https://discourse.itk.org/t/isovolume-on-rgb-video-frames-sequence-volume/474 "2017-12-01T02:12:19Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Joe\_Kozak](https://discourse.itk.org/letter_avatar_proxy/v4/letter/j/c6cbf5/32.png) [@Joe\_Kozak](https://discourse.itk.org/u/Joe_Kozak)
#### Post date: [December 1, 2017, 2:12am UTC](https://discourse.itk.org/t/isovolume-on-rgb-video-frames-sequence-volume/474/1 "2017-12-01T02:12:20Z")

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If i load a bunch of video frame jpeg into paraview, i cant use IsoVolume, why is that. Isnt each voxel just a 3 dimentional number e.g. RGB not scalar, can I not carve out a new IsoVolume based on some threshold value of Red or Green or whatnot, perhaps a union of Green and Blue scalars of the RGB triplet,.

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### Author: ![fbudin](https://discourse.itk.org/user_avatar/discourse.itk.org/fbudin/32/14_2.png) [@fbudin](https://discourse.itk.org/u/fbudin)
#### Post date: [December 1, 2017, 1:27pm UTC](https://discourse.itk.org/t/isovolume-on-rgb-video-frames-sequence-volume/474/2 "2017-12-01T13:27:53Z")

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Hello @Joe_Kozak,

You are mentioning paraview in your post. Maybe you should post this question on the paraview mailing list:  
[https://www.paraview.org/mailing-lists/](https://www.paraview.org/mailing-lists/)