# General registration (BRAINS) returns "Joint PDF summed to zero" error

**URL:** <https://discourse.slicer.org/t/general-registration-brains-returns-joint-pdf-summed-to-zero-error/684>\
**Category:** Support\
**Tags:** registration, diffusion, volume, brain\
**Created:** [July 12, 2017, 7:45pm UTC](https://discourse.slicer.org/t/general-registration-brains-returns-joint-pdf-summed-to-zero-error/684 "2017-07-12T19:45:44Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [April 20, 2018, 2:03pm UTC](https://discourse.slicer.org/t/general-registration-brains-returns-joint-pdf-summed-to-zero-error/684/9 "2018-04-20T14:03:17Z")

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2 posts were merged into an existing topic: [Gen Registration (Brains) fails despite overlap of series](https://discourse.slicer.org/t/gen-registration-brains-fails-despite-overlap-of-series/2644/2)

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_[View the full topic](https://discourse.slicer.org/t/general-registration-brains-returns-joint-pdf-summed-to-zero-error/684)._