> For the complete documentation index, see [llms.txt](https://support.senterasensors.com/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.senterasensors.com/home/sentera-calibrated-reflectance-panel/sentera-calibrated-reflectance-panel/calibration-imagery-post-processing/radiometric-corrections-tool.md).

# Radiometric Corrections Tool

## First Time Setup

{% hint style="warning" %}
This tool is only available for Windows operating systems. 
{% endhint %}

<details>

<summary>First Time Setup Instructions</summary>

### Download

{% stepper %}
{% step %}

### Navigate to the Github Page

Follow the link below:

{% embed url="<https://github.com/SenteraLLC/py-radiometric-corrections>" %}

<figure><img src="/files/QVaqxkyl7Sv79tu8gfyT" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Select "Releases"

On the right-hand side of the webpage select the Releases option. This will bring you to the releases page where the tool can be downloaded from.&#x20;

The newest release will be displayed at the top of the page.&#x20;

<figure><img src="/files/5gIKqT9kWzcGWyFsH9aC" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Select SenteraRadiometricCorrectionsGUI\_X.X.X.zip

Click on on SenteraRadiometricCorrectionsGUI\_X.X.X.zip and the download will begin.

{% hint style="info" %}
X.X.X is a generic placeholder for the current version number. The example images show version 2.1.3.&#x20;
{% endhint %}
{% endstep %}
{% endstepper %}

### Install

{% stepper %}
{% step %}

### Find Downloaded File

Locate the location of the downloaded .zip file.&#x20;
{% endstep %}

{% step %}

### Extract Files

Un-zip the folder to extract the files from the .zip folder. The SenteraRadiometricCorrectionsGUI\_X.X.X application file will be located inside to uncompressed folder.&#x20;
{% endstep %}

{% step %}

### Move the Tool (Recommended)

Move the SenteraRadiometricCorrectionsGUI\_X.X.X application file to a location where it can be easily accessed in the future such as the desktop.
{% endstep %}
{% endstepper %}

</details>

## Instructions

{% stepper %}
{% step %}

### Open Sentera Radiometric Corrections GUI

Open the tool by running SenteraRadiometricCorrectionsGUI\_X.X.X.exe where it is located on your computer. &#x20;

<div data-with-frame="true"><figure><img src="/files/LWhsh1kC0oA8BeJjXxdg" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Set the Input Path

Press the **Browse** button for the input path option and navigate to the folder of the imagery that is going to be corrected.&#x20;

<div data-with-frame="true"><figure><img src="/files/mrkkcyga2YATZYExb4Q3" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Set the Output Path&#x20;

The output path will automatically set itself to create a new folder with the same name and location as the input folder with "-calibrated" appended to it.&#x20;

<div data-with-frame="true"><figure><img src="/files/kSeXCC1kLWQgLaYLhXrn" alt=""><figcaption></figcaption></figure></div>

Optionally, if you do not want to use the default, press the Browse button for the output path option and navigate to the folder where the correct imagery should be saved.&#x20;
{% endstep %}

{% step %}

### Select Corrections Options&#x20;

Select the correction options that best suit your needs. The default option is reflectance Correction.&#x20;

See the full list of options and settings:

{% content-ref url="/pages/mU8WApeiDk5jvzfhiOGS" %}
[Optional & Advanced Inputs / Parameters](/home/sentera-calibrated-reflectance-panel/sentera-calibrated-reflectance-panel/calibration-imagery-post-processing/radiometric-corrections-tool/optional-and-advanced-inputs-parameters.md)
{% endcontent-ref %}
{% endstep %}

{% step %}

### Run Correction

Press the **Run Correction** button.&#x20;

<figure><img src="/files/GnkmA7Sh9D6lPfV6Itmw" alt=""><figcaption></figcaption></figure>

Your correction options will appear on screen as the processing begins.&#x20;

<figure><img src="/files/XzaLyT4lgt0Cr6O7UHve" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
You may see multiple lines of "No reflectance panel found. Mean DN: NaN" this is expected behavior as the tool identifies calibration photos from your Input Path. Wait for the processing to continue.
{% endhint %}

<figure><img src="/files/WNKn44rDIkd6fmm6jAtt" alt=""><figcaption></figcaption></figure>

{% endstep %}

{% step %}

### Complete&#x20;

Your images are now ready to be stitched.&#x20;

<figure><img src="/files/dD7cctMNmetLYtvJ8E6s" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}