cours_progra/03nov/umage.py

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2022-11-03 16:27:48 +01:00
#!/usr/bin/env python3
from PIL import Image # Requires python-image-library (pillow)
import itertools
def load(filename):
""" Given a filename that matches an image file,
return a list of lists of tuples corresponding to the list of
lines of pixels (R, G, B) of the image. """
with Image.open(filename, 'r') as image:
image = image.convert('RGB')
content = list(image.getdata())
size_x, size_y = image.size
return [content[i:i + size_x] for i in range(0, len(content), size_x)]
def save(image, filename='new', extension='jpg'):
""" Stores the given image into a file. The name
of the file is set to <filename>.<extension> which is
'new.jpg' by default. """
size_x, size_y = len(image), len(image[0])
new_image = Image.new('RGB', (size_y, size_x))
new_image.putdata(list(itertools.chain.from_iterable(image)))
new_image.save('%s.%s' % (filename, extension))
def show_image(image):
""" Show the image to the user. """
size_x, size_y = len(image), len(image[0])
new_image = Image.new('RGB', (size_y, size_x))
new_image.putdata(list(itertools.chain.from_iterable(image)))
new_image.show()