python opencv读取图像序列,如何使用Python和OpenCV从目录中读取图像？

I wrote the following code:

import os

import cv2

import random

from pathlib import Path

path = Path(__file__).parent

path = "../img_folder"

for f in path.iterdir():

f = str(f)

img=cv2.imread(f)

im_height = img.shape[0]

im_width = img.shape[1]

But when I run this code, I get the following error:

AttributeError: 'NoneType' object has no attribute 'shape' in im_height = img.shape[0].

I think I cannot access images, so I wrote print(img) and print(type(omg)) and None& is returned. img_folder is a folder that has 10 images. When I print out f, I get:

../img_folder/.DS_Store

I do not know why .DS_Store is contained because img_folder has only images. How should I fix this? What should I write this? Why can't I access images?

解决方案

You have post at least three questions about get filenames with "PostPath". Badly.

A better way is use glob.glob to get the specific type of filenames.

$ tree .

├── a.txt

├── feature.py

├── img01.jpg

├── img01.png

├── imgs

│   ├── img02.jpg

│   └── img02.png

├── tt01.py

├── tt02.py

└── utils.py

1 directory, 9 files

From current directory:

import glob

import itertools

def getFilenames(exts):

fnames = [glob.glob(ext) for ext in exts]

fnames = list(itertools.chain.from_iterable(fnames))

return fnames

## get `.py` and `.txt` in current folder

exts = ["*.py","*.txt"]

res = getFilenames(exts)

print(res)

# ['utils.py', 'tt02.py', 'feature.py', 'tt01.py', 'a.txt']

# get `.png` in current folder and subfolders

exts = ["*.png","*/*.png"]

res = getFilenames(exts)

print(res)

# ['img01.png', 'imgs/img02.png']