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# System prepended metadata

title: Displays

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# Displays
## Colormap
A list of colormaps is available in iPeriGrain to facilitate visualization of 2D image.

### Example of DEM
-- DEM displayed with original colormap.
![](https://i.imgur.com/9z8ET8z.png)

-- Example using WINTER colormap. Click "Apply".
![](https://i.imgur.com/1xFV3os.png)

-- The contrast and brightness can be adjusted via "Alpha" and "Beta", respectively.
-- This example demonstrates a better visualization of the grains in certain portions of DEM (denoted by arrow).

![](https://i.imgur.com/EtB7cIj.png)


### Example of optical image
-- Optical image displayed with original color
![](https://i.imgur.com/911oNTG.png)

-- Example using RAINBOW colormap. Click "Apply".
![](https://i.imgur.com/fkltRXL.png)

-- The contrast and brightness can be adjusted via "Alpha" and "Beta", respectively.
![](https://i.imgur.com/4KOwncL.png)



## Show 2D image and overlays
iPerigrain allows users to turn on/off the 2D image (Base Image), markers, and segment results in the display with overlay.
![](https://i.imgur.com/r6kQZOs.png)
