> For the complete documentation index, see [llms.txt](https://docs.gremsy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gremsy.com/gremsy-tiny-series/lynx/software-configuration/web-setting-app/ir-camera/ir-camera.md).
# IR Camera
**Scale**
Adjust how the IR image is displayed on screen:
* **Original** – Maintains the sensor’s native aspect ratio
* **Full Screen** – Scales the image to fill the display
***
**Overlay ROI (Region of Interest)**
Enable or disable visual overlays for measurement regions:
* **Enable** – Displays measurement boxes on the IR image
* **Disable** – Hides all ROI overlays
***
**ROI Measurement**
Select the size of the temperature measurement region:
* **Small**
* **Medium**
* **Large**
* **Full Screen**
> 📌 Choose a smaller ROI for precise spot measurements or larger regions for broader thermal averaging.
***
**FFC Mode (Flat-Field Correction)**
Control how thermal noise and image uniformity are corrected:
* **Auto** – Automatic calibration based on internal logic
* **Manual** – User-triggered calibration
* **External** – Triggered by external signal
* **External with Auto Table Switch** – Uses external trigger and auto compensation table selection
***
#### **FFC Period (Minutes)**
This setting determines how frequently the camera performs an **automatic FFC** operation.
* **Unit:** Minutes
* **Typical Range:** 1 to 60 minutes (or based on manufacturer limits)
* **Default:** Often 5
***
**Saving Your Settings**
Click **“APPLY”** to confirm and apply your IR camera configuration. Settings will be used immediately or after the next FFC trigger.
---
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