怎么调用这个模块 导入图片文件夹 图片 和生成长宽 可以举个例子么

import argparse
import os
import random
from PIL import Image

def make_collage(images, filename, width, init_height):

#Make a collage image with a width equal to width from images and save to filename.

if not images:
    print('No images for collage found!')
    return False

margin_size = 2
# run until a suitable arrangement of images is found
while True:
    # copy images to images_list
    images_list = images[:]
    coefs_lines = []
    images_line = []
    x = 0
    while images_list:
        # get first image and resize to `init_height`
        img_path = images_list.pop(0)
        img = Image.open(img_path)
        img.thumbnail((width, init_height))
        # when `x` will go beyond the `width`, start the next line
        if x > width:
            coefs_lines.append((float(x) / width, images_line))
            images_line = []
            x = 0
        x += img.size[0] + margin_size
        images_line.append(img_path)
    # finally add the last line with images
    coefs_lines.append((float(x) / width, images_line))

    # compact the lines, by reducing the `init_height`, if any with one or less images
    if len(coefs_lines) <= 1:
        break
    if any(map(lambda c: len(c[1]) <= 1, coefs_lines)):
        # reduce `init_height`
        init_height -= 10
    else:
        break

# get output height
out_height = 0
for coef, imgs_line in coefs_lines:
    if imgs_line:
        out_height += int(init_height / coef) + margin_size
if not out_height:
    print('Height of collage could not be 0!')
    return False

collage_image = Image.new('RGB', (width, int(out_height)), (35, 35, 35))
# put images to the collage
y = 0
for coef, imgs_line in coefs_lines:
    if imgs_line:
        x = 0
        for img_path in imgs_line:
            img = Image.open(img_path)
            # if need to enlarge an image - use `resize`, otherwise use `thumbnail`, it's faster
            k = (init_height / coef) / img.size[1]
            if k > 1:
                img = img.resize((int(img.size[0] * k), int(img.size[1] * k)), Image.ANTIALIAS)
            else:
                img.thumbnail((int(width / coef), int(init_height / coef)), Image.ANTIALIAS)
            if collage_image:
                collage_image.paste(img, (int(x), int(y)))
            x += img.size[0] + margin_size
        y += int(init_height / coef) + margin_size
collage_image.save(filename)
return True

def main():
# prepare argument parser
parse = argparse.ArgumentParser(description='Photo collage maker')
parse.add_argument('-f', '--folder', dest='folder', help='folder with images (*.jpg, *.jpeg, *.png)', default='.')
parse.add_argument('-o', '--output', dest='output', help='output collage image filename', default='collage.png')
parse.add_argument('-w', '--width', dest='width', type=int, help='resulting collage image width')
parse.add_argument('-i', '--init_height', dest='init_height', type=int, help='initial height for resize the images')
parse.add_argument('-s', '--shuffle', action='store_true', dest='shuffle', help='enable images shuffle')

args = parse.parse_args()

if not args.width or not args.init_height:
    parse.print_help()
    exit(1)

# get images
files = [os.path.join(args.folder, fn) for fn in os.listdir(args.folder)]
images = [fn for fn in files if os.path.splitext(fn)[1].lower() in ('.jpg', '.jpeg', '.png')]
if not images:
    print('No images for making collage! Please select other directory with images!')
    exit(1)

# shuffle images if needed
if args.shuffle:
    random.shuffle(images)

print('Making collage...')
res = make_collage(images, args.output, args.width, args.init_height)
if not res:
    print('Failed to create collage!')
    exit(1)
print('Collage is ready!')

if name == 'main':
main()

要是不会用命令行，直接在这里后面的default里面填上默认参数然后运行就行了，

可以在ide里面找到函数定义，看源代码。

from PIL import Image
 
pic_path = 'logo_white_ee663702.png'
im = Image.open(pic_path)
x, y = im.size
print "size: ", x, y
这样行不行？