Lepton 2.5 not giving accurate temperature

[Tilda]

I am using Lepton 2.5 to get the temperature distribution in my face. I am running the example script. I dont get the accurate temperature from the lepton. I am running it in grayscale.

[oramafanis]

Notice that this is an estimated temp.
If you want to be more accurate please norrow down the rectangle box to point excactly on your forehead.
Adjust linits at 25-45.
Get statistics from the rect blob using a list of 1-254 instead of the threshold list of the blob.