Why PyAutoGui LocateOnScreen() only Returns None

python pyautogui
Raheem picture Raheem · Apr 30, 2017 · Viewed 28.9k times · Source

Here's the code that I'm trying to run:

import pyautogui
r=pyautogui.locateOnScreen('C:\Users\David\Desktop\index.png',grayscale=False)
print r

Answer

Prelator2 picture Prelator2 · Aug 31, 2018

It has to be a pixel-perfect match in order to be found. To allow for any sort of deviance you can invoke a confidence parameter.

For example:

loc = pyautogui.locateOnScreen(image, grayscale=True, confidence=.5)

However, in order to use the confidence parameter you have to have opencv_python installed. This is easy to install with pip:

./python -m pip install opencv_python

After that is in place, you should be able to account for minor differences.

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