Python 拼接多张尺寸大小不一样的图片制作长图

Python 拼接多张尺寸大小不一样的图片制作长图

from os import listdir
from PIL import Image

# 获取当前文件夹下所以图片
ims = [Image.open('../images/%s' % fn) for fn in listdir('../images') if fn.endswith('.jpg')]

ims_size = [list(im.size) for im in ims]
middle_width = sorted(ims_size, key=lambda im: im[0])[int(len(ims_size)/2)][0]  # 中位数宽度
ims = [im for im in ims if im.size[0] > middle_width/2]  # 过滤宽度过小的无效图片

# 过滤后重新计算
ims_size = [list(im.size) for im in ims]
middle_width = sorted(ims_size, key=lambda im: im[0])[int(len(ims_size)/2)][0]  # 中位数宽度
ims = [im for im in ims if im.size[0] > middle_width/2]  # 过滤宽度过小的无效图片

# 计算相对长图目标宽度尺寸
for i in range(len(ims_size)):
    rate = middle_width/ims_size[i][0]
    ims_size[i][0] = middle_width
    ims_size[i][1] = int(rate*ims_size[i][1])

sum_height = sum([im[1] for im in ims_size])
# 创建空白长图
result = Image.new(ims[0].mode, (middle_width, sum_height))

# 拼接
top = 0
for i, im in enumerate(ims):
    mew_im = im.resize(ims_size[i], Image.ANTIALIAS)  # 等比缩放
    result.paste(mew_im, box=(0, top))
    top += ims_size[i][1]
# 保存
result.save('result.png')

效果展示：

原图片：

拼接结果：缩放状态