import bpy
import numpy as np

def read_pixels_from_image(img):
    width, height = img.size[0], img.size[1]

    if bpy.app.version >= (2, 83, 0):
        pixels = np.empty(len(img.pixels), dtype=np.float32); 
        img.pixels.foreach_get(pixels)
        return np.reshape(pixels, (height, width, 4))
    else:
        return np.reshape(img.pixels[:], (height, width, 4))

def write_pixels_to_image(img, pixels):
    if bpy.app.version >= (2, 83, 0):
        img.pixels.foreach_set(np.reshape(pixels, -1))
    else:
        img.pixels = np.reshape(pixels, -1)

    if img.preview:
        img.preview.reload()