# how to find feature edges and save it as an image
**URL:** https://discourse.paraview.org/t/how-to-find-feature-edges-and-save-it-as-an-image/1700
**Category:** ParaView Support
**Created:** [April 19, 2019, 1:01am UTC](https://discourse.paraview.org/t/how-to-find-feature-edges-and-save-it-as-an-image/1700 "2019-04-19T01:01:45Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Syeda\_Sumaiya](https://discourse.paraview.org/u/Syeda_Sumaiya)
#### Post date: [April 19, 2019, 1:01am UTC](https://discourse.paraview.org/t/how-to-find-feature-edges-and-save-it-as-an-image/1700/1 "2019-04-19T01:01:45Z")
Hi,
I have microstrcture image (EBSD) which I have generated from the Dream 3d. I need to get only the ‘‘grain boundary’’ image from the microstructure. in other words I just need to extract the edges from the microstructure image. how can I get that? I have attached two images for reference. first one is a reference of dream 3d ebsd microstructure, and the second one is how the grain boundary image should look like (they re not the same image, I just placed it as example. I have done it somehow in paraview before, but could not remember the exact way!! I would appreciate any help/suggestion on this. Thanks!!!
[kihoise.tiff](https://discourse.paraview.org/uploads/default/original/2X/8/8ebf4e32b2ac2d1b9c4edf0a344f1f62eee39cf2.tiff) (20.3 KB)
[rolledn.tiff](https://discourse.paraview.org/uploads/default/original/2X/6/680ad5ace6534daafd867b1a5ff0521e8b67eab8.tiff) (317.1 KB)
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### Author:  [@thewtex](https://discourse.paraview.org/u/thewtex)
#### Post date: [April 25, 2019, 6:29pm UTC](https://discourse.paraview.org/t/how-to-find-feature-edges-and-save-it-as-an-image/1700/2 "2019-04-25T18:29:44Z")
@Syeda_Sumaiya this is a segmentation problem – segment the different grains based on their orientation. [DREAM.3D has tools for this](http://dream3d.bluequartz.net/binaries/Help/DREAM3D/2_Tutorials/EBSDReconstruction/index.html). Then, the resulting segmentation can be visualized in ParaView.
CC: @Michael_Jackson