AttributeError: module 'cv2' has no attribute 'maxPool2D'

The error message you provided means that the cv2 module does not have an attribute called maxPool2D. This is most likely because maxPool2D is not a function or method that is included in the cv2 module.

If you are trying to perform max pooling on images using OpenCV, you may want to try using the cv2.dnn module instead. This module provides access to the deep neural network (DNN) functionality in OpenCV, which includes support for pooling layers such as max pooling. Here is an example of how you can use the cv2.dnn module to perform max pooling on an image:

import cv2

# Load the image
image = cv2.imread("image.jpg")

# Create a max pooling layer with a kernel size of 2x2
maxpool_layer = cv2.dnn.maxPooling(image.shape[0], image.shape[1], 2, 2)

# Apply the max pooling layer to the image
pooled_image = maxpool_layer.forward(image)

This code creates a max pooling layer with a kernel size of 2x2 using the cv2.dnn.maxPooling function. It then applies the max pooling layer to the image using the forward method. The resulting pooled_image variable contains the max pooled image.