# Solar Eclipse / Druckmullerova's algorithm

**URL:** https://community.openastronomy.org/t/solar-eclipse-druckmullerovas-algorithm/726
**Category:** SunPy
**Tags:** sunpy
**Created:** [August 19, 2023, 2:11am UTC](https://community.openastronomy.org/t/solar-eclipse-druckmullerovas-algorithm/726 "2023-08-19T02:11:47Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Francois](https://avatars.discourse-cdn.com/v4/letter/f/77aa72/32.png) [@Francois](https://community.openastronomy.org/u/Francois)
#### Post date: [August 19, 2023, 2:11am UTC](https://community.openastronomy.org/t/solar-eclipse-druckmullerovas-algorithm/726/1 "2023-08-19T02:11:47Z")

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Hi, I am new to this forum, I am trying to use the function **fnrgf** to process a solar eclipse image, the image is a composite taken from many bracketed images.

Does anyone has an example i can copy ?

Thank you

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### Author: ![Cadair](https://dub1.discourse-cdn.com/flex005/user_avatar/community.openastronomy.org/cadair/32/422_2.png) [@Cadair](https://community.openastronomy.org/u/Cadair)
#### Post date: [August 24, 2023, 2:35pm UTC](https://community.openastronomy.org/t/solar-eclipse-druckmullerovas-algorithm/726/2 "2023-08-24T14:35:44Z")

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Hello,

There is an example of using fnrgf here: [Radial Gradient Filters — sunkit\_image 0.5.0 documentation](https://docs.sunpy.org/projects/sunkit-image/en/stable/generated/gallery/radial_gradient_filters.html)

if you have any questions trying to adapt it let us know and I am sure someone will be able to help.