# Why is the final mutual information obtained in the registration process different from the mutual information of the image after I calculate the registration

**URL:** https://discourse.itk.org/t/why-is-the-final-mutual-information-obtained-in-the-registration-process-different-from-the-mutual-information-of-the-image-after-i-calculate-the-registration/5860
**Category:** Uncategorized
**Created:** [April 9, 2023, 9:39am UTC](https://discourse.itk.org/t/why-is-the-final-mutual-information-obtained-in-the-registration-process-different-from-the-mutual-information-of-the-image-after-i-calculate-the-registration/5860 "2023-04-09T09:39:05Z")
**Posts on this page:** 1
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### 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: [April 10, 2023, 11:12pm UTC](https://discourse.itk.org/t/why-is-the-final-mutual-information-obtained-in-the-registration-process-different-from-the-mutual-information-of-the-image-after-i-calculate-the-registration/5860/2 "2023-04-10T23:12:17Z")

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Hello @ljjiayou,

Please see [this discussion](https://discourse.itk.org/t/calculating-mutual-information-of-two-images/4931/1). It answers your question and covers other related registration details.

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