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# System prepended metadata

title: 4.2 Interactive Experimenting

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# 4.2 Interactive Experimenting
Finding a pair of suitable min/max thresholds for initial segmention and placing grain and background markers at the appropriate pixles are sometimes challenging. Trial and error is a commonly conducted practice. iPeriGrain offers efficient tools to such task. Users can experiment with their input and conduct segmentation in an interactive manner.
## "Redo" and "Undo" tools
![](https://i.imgur.com/0DNleBp.png)
## "Save intermediate results" tool
### To save intermediate results
-- Select a "Result Index"
-- Click "Save" to save the intermediate result

### To restore intermediate results
-- Select a "Result Index" with intermediate result
-- Click "Restore" to restore the result

![](https://i.imgur.com/evgLk24.png)