In [13]:

    

food101 = '/home/han/Downloads/food-101/images/'
import os

with open('./food101_calories.txt') as f:
    calories = {
        x.upper(): float(y) for x, y in map(str.split, f.readlines())
    }
outdir = 'food101'
import scipy.misc

counter = 0
result = {}
for folder in os.listdir(food101):
    cur_dir = os.path.join(food101, folder)
    cal = calories[folder.replace('_', '+').upper()]
    for fname in os.listdir(cur_dir):
        cur_file = os.path.join(cur_dir, fname)
        img = scipy.misc.imread(cur_file)
        resized = scipy.misc.imresize(img, (256, 256))
        new_file_name = os.path.join(outdir, str(counter) + '.jpg')
        scipy.misc.imsave(new_file_name, resized)
        counter += 1
        result[new_file_name] = cal


    

In [15]:

    

with open('food101/calories.txt', 'w') as f:
    for name, c in result.items():
        print(name, c, file=f)