Код выполняется в Google colab без ошибок, но результата не дает - PullRequest
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Код выполняется в Google colab без ошибок, но результата не дает

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/ 19 июня 2020 
%tensorflow_version 1.x
import numpy as np
import matplotlib.pyplot as plt
import tensorflow as tf
tf.reset_default_graph()
from PIL import Image, ImageFilter
def imageprepare(argv):
    """
    This function returns the pixel values.
    The imput is a png file location.
    """
    im = Image.open(argv).convert(r'C:\Users\DELL\Desktop\devnagari digits\1.png')
    width = float(im.size[0])
    height = float(im.size[1])
    newImage = Image.new(r'C:\Users\DELL\Desktop\devnagari digits\1.png', (28, 28), (255)) # creates white canvas of 28x28 pixels

    if width > height:  # check which dimension is bigger
        # Width is bigger. Width becomes 20 pixels.
        nheight = int(round((20.0 / width * height), 0))  # resize height according to ratio width
        if (nheight == 0):  # rare case but minimum is 1 pixel
            nheight = 1
            # resize and sharpen
        img = im.resize((20, nheight), Image.ANTIALIAS).filter(ImageFilter.SHARPEN)
        wtop = int(round(((28 - nheight) / 2), 0))  # calculate horizontal position
        newImage.paste(img, (4, wtop))  # paste resized image on white canvas
    else:
        # Height is bigger. Heigth becomes 20 pixels.
        nwidth = int(round((20.0 / height * width), 0))  # resize width according to ratio height
        if (nwidth == 0):  # rare case but minimum is 1 pixel
            nwidth = 1
            # resize and sharpen
        img = im.resize((nwidth, 20), Image.ANTIALIAS).filter(ImageFilter.SHARPEN)
        wleft = int(round(((28 - nwidth) / 2), 0))  # caculate vertical pozition
        newImage.paste(img, (wleft, 4))  # paste resized image on white canvas

    # newImage.save("sample.png

    tv = list(newImage.getdata())  # get pixel values
    # normalize pixels to 0 and 1. 0 is pure white, 1 is pure black.
    tva = [(255 - x) * 1.0 / 255.0 for x in tv]
    print(tva)
    return tva
    x=imageprepare(r'C:\Users\DELL\Desktop\devnagari digits\2.png')
    print(len(x))# mnist IMAGES are 28x28=784 pixels
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