Earlier this year I was working on a Pi5-based multispectral camera to combine visible, short IR and UV. I found some useful code online (see https://github.com/khufkens/align_images along with my little bash script at https://gtoal.com/OpenSCAD/prism_holder/align-images ) to align images from different cameras and like you am now looking into overlaying long IR with an old FLIR camera for Android which it turns out can now be streamed live over usb to the Pi5 using https://github.com/joshuapinter/flir (though that wasn't the case many years ago when I bought my first FLIR add-on camera!)

Hello, thanks for all the resources you are doing an awesome job. 
I have a question please. Here is the situation, I am connecting the Flir Lepton through GPIO pins. I can take pictures with the camera using your code. All I need is to get video output from the flir so that I can do my Opencv with python analysis. I need something like this: 

cap = cv2.VideoCapture() I tested with all integers none of them works. Please, help I am stuck.

Thanks a lot

Souflane, OpenCV's VideoCapture module will capture data from a camera, but not from the Lepton unless you do something to make it look to the system like a camera. This project does not do that. If you want to capture data from the Lepton using pylepton, you must use pylepton's API.

thank for your reply. How can I use pylepton's api?

You can find the example code posted on this page.

do you mean this code:

import numpy as np
import cv2
from pylepton import Lepton

with Lepton() as l:
a,_ = l.capture(). (what can I write to save the video from the lepton to let's say "a)")
While(True):

    ret, frame = a.read()

    cv2.imshow('frame', frame)

This doesn't work what's wrong with it please. Thank you again for taking the time to answer my questions

import numpy as np

import cv2
from pylepton import Lepton

with Lepton() as l:
a,_ = l.capture()        #(this is used to take pictures, I want to get Video, what function is used??) 
cv2.normalize(a, a, 0, 65535, cv2.NORM_MINMAX) # extend contrast
np.right_shift(a, 8, a) # fit data into 8 bits
cv2.imwrite("output.jpg", np.uint8(a)) # write it!

Many thanks Kurt. It's urgent please

I am working a project similar to this one. Just waiting on my Lepton camera.

Hello Chirsterpher,  

I have a question please. Here is the situation, I am connecting the Flir Lepton through GPIO pins. I can take pictures with the camera using your code. All I need is to get video output from the flir so that I can do my Opencv with python analysis. I need something like this: 
cap = cv2.VideoCapture() I tested with all integers none of them works. Please, help I am stuck.
Thanks a lot

@davedarko If you still want to overlay sound on video :)

cool :)