[python] url image 바로 읽기, file에서 불러오기

1. 한장 불러오기

from PIL import Image
import urllib

Image.open(urllib.request.urlretrieve(df['tiny_image'][1001])[0])

2. 랜덤하게 여러장 불러오기

import random
from matplotlib import pyplot as plt
from IPython.display import Image, display
from tqdm import tqdm_notebook
import urllib.request
import time
import socket
import urllib   
from PIL import Image

random.seed(777)

for i in random.sample(range(len(df)),70):
    img = plt.imread(urllib.request.urlretrieve(df['tiny_image'][i])[0])
    imgplot = plt.imshow(img)
    plt.show()

3. file에서 바로 불러오기

import random
from matplotlib import pyplot as plt
import skimage.io
from IPython.display import Image, display
from tqdm import tqdm_notebook
import urllib.request
import time
import socket
import urllib   

for i in random.sample(range(len(arr[1])),5):
    image_filename = arr[1]['x'][i]
    f_name = path+'/'+image_filename.split('/')[-1]
    img_name = image_filename.split('/')[-1]
    
    print(arr[1]['z'][i])
    print(f_name)
    
    try:
        if os.path.isfile(f_name):
            print('isfile')
            img = plt.imread(f_name)
            imgplot = plt.imshow(img)
            plt.show()
        else:
            print('no isfile')
            urllib.request.urlretrieve(image_filename, path+'/'+img_name)   
            display(Image(filename=f_name))
    except:
        pass