It's pretty easy to turn an image into a greyscale version of itself in PIL. But how do I then turn that image into a list of its values, row by row. Not an array. Just a list. In this case the image is 28 x 28.
But assume its 2 x 2 and its greyscale looked like this:
214, 61
131, 121
then, I would want it to just be a list like this:
[214, 61, 131, 121]
Like this:
from PIL import Image
# Create 2x2 grey image
im = Image.new('L', (2,2), color=128)
print(list(im.getdata()))
Output:
[128, 128, 128, 128]
Note that the value returned by getdata() is already an iterator, so there's no need to make it into a list if you just want to iterate over it:
for px in im.getdata():
print(px)
will work just fine.
