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A = []

fobj = open("Bilder.txt", "r")
for line in fobj: 
    s = "Testbilder\JPEGBild\\" + line
    zuordnung = s.split("\n")
    A.append(zuordnung[0]) 
fobj.close()

print(A)

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print(A[0])

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import os

IMAGE_BASE_PATH = r'Testbilder\JPEGBild'


def main():
    with open('Bilder.txt', 'r') as lines:
        image_paths = [
            os.path.join(IMAGE_BASE_PATH, line.rstrip()) for line in lines
        ]
    print(image_paths)


if __name__ == '__main__':
    main()

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from PIL import Image
import os

IMAGE_BASE_PATH = r'Testbilder\Strand und Strasse\Strand\\'

with open('Bilder.txt', 'r') as lines:
    image_paths = [
        os.path.join(IMAGE_BASE_PATH, line.rstrip()) for line in lines
    ]


red_pixels = []
data = []

for image_path in image_paths:
    img = Image.open(image_path)
    pixel = img.getdata()
    for j in range(len(pixel)):
        red_pixels.append(pixel[j][0])
    data.append(red_pixels)
    red_pixels = []

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red_pixels = [pix[0] for pix in pixel]

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#!/usr/bin/env python
import os
from PIL import Image

IMAGE_BASE_PATH = r'Testbilder\Strand und Strasse\Strand'


def main():
    with open('Bilder.txt', 'r') as lines:
        image_paths = [
            os.path.join(IMAGE_BASE_PATH, line.rstrip()) for line in lines
        ]
    data = list()
    for image_path in image_paths:
        image = Image.open(image_path)
        data.append(image.getdata(image.getbands().index('R')))


if __name__ == '__main__':
    main()