> 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-with-fieldagent.md).

# Radiometric Corrections with FieldAgent

Radiometric Correction are performed in FieldAgent when an image set with Calibration Photos is processed into an orthomosaic.

## Requirements

* FieldAgent Subscription
* Calibration photo file names begin with CAL\_

## Renaming Calibration Photos

{% hint style="info" %}
This step is only required for 3rd party sensors, such as the Mavic 3 Multispectral. Calibration photos from Sentera Sensors are correctly named at the time of capture. 
{% endhint %}

FieldAgent requires calibration photo names to begin with CAL\_ to be recognized and used for radiometric calibration. 

<details>

<summary>How to Rename Calibration Photos</summary>

{% stepper %}
{% step %}

### Navigate to your Imagery

Open your session folder in a file explorer.&#x20;

<div data-with-frame="true"><figure><img src="/files/o3fUU2JuexYcdtA8DACG" alt=""><figcaption></figcaption></figure></div>

If you have multiple folders for calibration imagery and flight imagery, open your calibration imagery folder.&#x20;

<figure><img src="/files/h3izJ1dUgRGDYIsNhu8J" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Rename Files

Rename each calibration photo to begin with CAL\_

<figure><img src="/files/04IK89LJ4MPFishPLdal" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

</details>

## FieldAgent Desktop

Radiometric Corrections are performed in FieldAgent Desktop when you import an image set with Calibration Photos and order a mosaic.&#x20;

{% stepper %}
{% step %}

### Select Create Surveys

<div data-with-frame="true"><figure><img src="/files/l3NfC6FFs0AwyubKnh9M" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Import Imagery

Click to browse your file explorer.

<div data-with-frame="true"><figure><img src="/files/r0cjiHaXBAefEshXYk1H" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Select Image Folder

if you have separate folders for your calibration photos and flight imagery, select a folder which contains both subfolders.&#x20;

<div data-with-frame="true"><figure><img src="/files/CNv3ThjqMjr0eJsSZwy4" alt=""><figcaption></figcaption></figure></div>

{% hint style="info" %}
Ensure that all your imagery is contained within the folder you select.&#x20;
{% endhint %}
{% endstep %}

{% step %}

### Verify Calibration Photos

Click on the survey, on the left side of the screen, to view image types included in the survey

<div data-with-frame="true"><figure><img src="/files/F7A6D9aIh91A9WvGSIqu" alt=""><figcaption></figcaption></figure></div>

Under survey details you can see the number of RGB, Multispectral, and Calibration Panel Images included in the survey.&#x20;

<div data-with-frame="true"><figure><img src="/files/25G174tYzoBEmtw61xLf" alt=""><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}

### Import

Select Create Import and wait for your images to upload

<div data-with-frame="true"><figure><img src="/files/NhdmlwMZrfjVeGcY5ksl" alt=""><figcaption></figcaption></figure></div>

{% endstep %}

{% step %}

### Process Imagery

Select Analytics

<div data-with-frame="true"><figure><img src="/files/Z1hnWsViRLVpClM94sHq" alt=""><figcaption></figcaption></figure></div>

Select your Mosaic analytic

<div data-with-frame="true"><figure><img src="/files/J9RaTUfiMFCMIU8g6jwJ" alt=""><figcaption></figcaption></figure></div>

Click Submit

<div data-with-frame="true"><figure><img src="/files/GiRHxR1c5KcUtB9tvZSl" alt=""><figcaption></figcaption></figure></div>

Your Imagery will now calibrate and stitch.&#x20;

<div data-with-frame="true"><figure><img src="/files/8AEtlyVFntNUU0fbutEC" alt=""><figcaption></figcaption></figure></div>
{% endstep %}
{% endstepper %}

## FieldAgent Web

Radiometric Corrections are performed in FieldAgent Web when you import an image set with Calibration Photos and order a mosaic.&#x20;

{% stepper %}
{% step %}

### Select your Field

Navigate to the field you have Imagery for.&#x20;

<div data-with-frame="true"><figure><img src="/files/ktG8TLGPHWUbjkkP0iGJ" alt=""><figcaption></figcaption></figure></div>

{% endstep %}

{% step %}

### Import Imagery

Select Import Imagery

<div data-with-frame="true"><figure><img src="/files/tjoKlqPv57UedLQf0pht" alt=""><figcaption></figcaption></figure></div>

{% endstep %}

{% step %}

### Select Images

Drag and drop your image folder to easily select your images.&#x20;

Alternatively, click on the "Add JPEG or TIFF photos" area to browse your file explorer and select photo files. You cannot select folders from the file explorer.&#x20;

{% hint style="info" %}
Ensure that you upload all flight imagery and calibration photos. You can continue to add folders and images before clicking upload.
{% endhint %}

<div data-with-frame="true"><figure><img src="/files/FHSgAp73zrn6Be3uO06M" alt=""><figcaption></figcaption></figure></div>

{% endstep %}

{% step %}

### Upload

Verify that you have the expected number of images, then click upload.

<div data-with-frame="true"><figure><img src="/files/suYvt9Ux9aqpHBhYtPyZ" alt=""><figcaption></figcaption></figure></div>

Wait for your images to upload.&#x20;

<div data-with-frame="true"><figure><img src="/files/rDpylFFjtVd3Lt4DU0ho" alt=""><figcaption></figcaption></figure></div>

{% endstep %}

{% step %}

### Process Imagery

Click the back arrow by the field name to return to the field page

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

Click Order Mosaics

<div data-with-frame="true"><figure><img src="/files/GlUr9g1D4M8NJVx3iEB8" alt=""><figcaption></figcaption></figure></div>

Select your survey.

<div data-with-frame="true"><figure><img src="/files/YbLv16gONKwvgVHOAQ4X" alt=""><figcaption></figcaption></figure></div>

Select your analytics and click submit

<div data-with-frame="true"><figure><img src="/files/R2pHTALqo98RvT5Znk7a" alt=""><figcaption></figcaption></figure></div>

Your imagery will now calibrate and stitch

<div data-with-frame="true"><figure><img src="/files/41sWhWy1FvFcYmTYvkUz" alt=""><figcaption></figcaption></figure></div>

{% endstep %}
{% endstepper %}