Load all images from a folder using PIL

Question

import glob
from PIL import Image 


marked = glob.iglob("D:/Users/username/Desktop/cells/Marked")

img = Image.open(marked)
img.show()

I am trying to create a neural network using an image dataset contained in the Folder marked. When I run the code I get the error:

 File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/PIL/Image.py", line 2547, in open
    fp.seek(0)
AttributeError: 'generator' object has no attribute 'seek'

I do not understand what the error means, it seems to be misdirected?

[`Image.open()`](https://pillow.readthedocs.io/en/5.1.x/reference/Image.html#PIL.Image.open) take a single file string/path/object. — wwii, May 27 '18 at 23:53

score 8 · Accepted Answer · answered May 27 '18 at 23:44

8

You'll need to specify a wildcard at the end of your path and iterate:

images = []
for f in glob.iglob("D:/Users/username/Desktop/cells/Marked/*"):
    images.append(np.asarray(Image.open(f)))

images = np.array(images)

answered May 27 '18 at 23:44

cs95

379,657
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3

Downvoter, can you please give me feedback to improve this answer? – cs95 May 27 '18 at 23:58
If the images have different shape the np.array(images) would fail – Nandesh Aug 09 '23 at 07:07

score 4 · Answer 2 · answered Feb 12 '19 at 16:31

4

See this answer, which uses PIL.Image and glob to find all images in the folder and load them into an array.

from PIL import Image
import glob
image_list = []
for filename in glob.glob('yourpath/*.gif'): #assuming gif
    im=Image.open(filename)
    image_list.append(im)

answered Feb 12 '19 at 16:31

generic_stackoverflow_user

316
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What are the advantages of this over @coldspeed's already accepted answer please? – Mark Setchell Feb 12 '19 at 16:37
Just pointing out that there is an existing answer that works just as well (also including import statements). – generic_stackoverflow_user Feb 12 '19 at 16:41

Load all images from a folder using PIL

2 Answers2