How to load multiple images in a numpy array ?

Question

How to load pixels of multiple images in a directory in a numpy array . I have loaded a single image in a numpy array . But can not figure out how to load multiple images fr

Answer 1

Use OpenCV's imread() function together with os.listdir(), like

import numpy as np
import cv2
import os

instances = []

# Load in the images
for filepath in os.listdir('images/'):
    instances.append(cv2.imread('images/{0}'.format(filepath),0))

print(type(instances[0]))

class 'numpy.ndarray'

This returns you a list (==instances) in which all the greyscale values of the images are stored. For colour images simply set .format(filepath),1.