README.md

Pass IMAQ RGB image from LabVIEW to Python

This code shows an example of passing an IMAQ RGB image to python using the LabVIEW Python Node.

We will use the IMAQ ImageToEDVR.vi to easily convert the IMAQ image into a 3D array of U8s.

The pixel order on the LabVIEW side is ARGB which will magically be reversed to be BGRA (the opencv order) as it is passed to Python.

Code-Snippet.png

Example-Small.png

IMAQ RGB to Python.vi

show-image.py

import numpy as np
import cv2

def show_image(data):

    image = np.array(data,dtype=np.uint8)

    gray = cv2.cvtColor(image, cv2.COLOR_BGRA2GRAY)
    
    cv2.imshow("This BGRA Image was passed from LabVIEW", image)
    cv2.imshow("This is the gray version", gray)

    cv2.waitKey(3000)