Colors are incorrect in screenshot

[conor-b777]

I'm making a small program that opens a window with a pyautogui.screenshot of their mouses position, constantly.

In this window, the colors seem to be swapped. This happens mainly to orange and blue. This has happened on macOS and windows 10, with a ViewSonic Omni monitor and the Omen 15's display on macOS and Windows 10 respectively.

This is my code:

import cv2
import pyautogui
import numpy

wwidth = 450
wheight = 450
cursorpos = pyautogui.position()

nposx = cursorpos.x - 225
nposy = cursorpos.y - 225

while True == True:
    im = numpy.array(pyautogui.screenshot(region=((nposx, nposy) + (wwidth, wheight))))

    cursorpos = pyautogui.position()
    nposx = cursorpos.x - wwidth/2
    nposy = cursorpos.y - wheight/2

    cv2.imshow("Press Q to kill window", im)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

Any help would be greatly appreciated, and apologies if my code is formatted terribly, I am a beginner to programming in general.

[iamankeshsharma]

pyautogui.screenshot() returns a Pillow Image Object in RGB (Red, Green, Blue) color format by default. But cv2.imshow() expects an image in the form of numpy array and color format BGR (Blue, Green, Red).

You can use this cv2.cvtColor(image, cv2.COLOR_RGB2BGR) to convert image from RGB to BGR color format.

Output:

[conor-b777]

Thank you! This explanation makes a lot of sense.