How our image data imported via PIL and converted to numpy array is stored

606 rows in img_2617. Each element in the big list is a column list. Each column list has 1810 columns. Each element in the column list is a 3-element list. This three element list contains the R,G,B raw image data.



In [12]:

    
import numpy as np
from PIL import Image



In [13]:

    
img = Image.open("IMG_2617.tif")
img_data = np.array(img)
img_data









    Out[13]:





array([[[1, 0, 0],
        [1, 0, 1],
        [1, 0, 1],
        ..., 
        [1, 0, 0],
        [3, 2, 2],
        [0, 0, 0]],

       [[1, 0, 1],
        [0, 0, 0],
        [1, 1, 1],
        ..., 
        [1, 0, 1],
        [1, 1, 1],
        [0, 0, 0]],

       [[0, 0, 0],
        [1, 0, 0],
        [1, 0, 1],
        ..., 
        [1, 0, 0],
        [0, 0, 0],
        [1, 1, 1]],

       ..., 
       [[1, 0, 1],
        [0, 0, 0],
        [0, 0, 0],
        ..., 
        [0, 0, 0],
        [0, 0, 0],
        [0, 0, 0]],

       [[2, 1, 2],
        [1, 1, 1],
        [0, 0, 0],
        ..., 
        [1, 0, 0],
        [1, 1, 1],
        [0, 0, 0]],

       [[1, 0, 0],
        [1, 0, 0],
        [1, 1, 1],
        ..., 
        [0, 0, 0],
        [0, 0, 0],
        [0, 0, 0]]], dtype=uint8)



In [14]:

    
len(img_data)









    Out[14]:





606



In [15]:

    
len(img_data[0])









    Out[15]:





1810



In [16]:

    
len(img_data[0][1])









    Out[16]:





3



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