> 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.
How to Rename Calibration Photos
{% stepper %}
{% step %}
### Navigate to your Imagery
Open your session folder in a file explorer.
If you have multiple folders for calibration imagery and flight imagery, open your calibration imagery folder.
{% endstep %}
{% step %}
### Rename Files
Rename each calibration photo to begin with CAL\_
{% endstep %}
{% endstepper %}
## FieldAgent Desktop
Radiometric Corrections are performed in FieldAgent Desktop when you import an image set with Calibration Photos and order a mosaic.
{% stepper %}
{% step %}
### Select Create Surveys
{% endstep %}
{% step %}
### Import Imagery
Click to browse your file explorer.
{% endstep %}
{% step %}
### Select Image Folder
if you have separate folders for your calibration photos and flight imagery, select a folder which contains both subfolders.
{% hint style="info" %}
Ensure that all your imagery is contained within the folder you select.
{% 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
Under survey details you can see the number of RGB, Multispectral, and Calibration Panel Images included in the survey.
{% endstep %}
{% step %}
### Import
Select Create Import and wait for your images to upload
{% endstep %}
{% endstepper %}
## FieldAgent Web
Radiometric Corrections are performed in FieldAgent Web when you import an image set with Calibration Photos and order a mosaic.
{% stepper %}
{% step %}
### Select your Field
Navigate to the field you have Imagery for.
{% endstep %}
{% step %}
### Select Images
Drag and drop your image folder to easily select your images.
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.
{% 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 %}
{% endstep %}
{% step %}
### Upload
Verify that you have the expected number of images, then click upload.
Wait for your images to upload.
{% endstep %}
{% step %}
### Process Imagery
Click the back arrow by the field name to return to the field page
Click Order Mosaics
Select your survey.
Select your analytics and click submit
Your imagery will now calibrate and stitch
{% endstep %}
{% endstepper %}
---
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