How to convert a PIL Image into a numpy array?

Question

Alright, I\'m toying around with converting a PIL image object back and forth to a numpy array so I can do some faster pixel by pixel transformations than PIL\'s Pixel

Answer 1

You need to convert your image to a numpy array this way:

import numpy
import PIL

img = PIL.Image.open("foo.jpg").convert("L")
imgarr = numpy.array(img) 

Answer 2

def imshow(img):
    img = img / 2 + 0.5     # unnormalize
    npimg = img.numpy()
    plt.imshow(np.transpose(npimg, (1, 2, 0)))
    plt.show()

You can transform the image into numpy by parsing the image into numpy() function after squishing out the features( unnormalization)