Question

我正在尝试将大约50张图像（全部在相同的287x287大小中）拼接在一起。具体来说，顶行应该有25个图像，底行应该有25个图像，每两个图像之间也有一个小的距离。

我在尝试期间遇到了两个困难：

第一个问题是文件夹中有25个图像，其名称为'prefix-70',...,'prefix-94'，而其他25个图像位于另一个名称为'prefix-70',...,'prefix-94'的文件夹中。我不知道如何在Python中没有冲突。

第二个问题是我编写了以下代码来读取一个文件夹图像以形成一行，但它输出一列。

#!/usr/bin/python3.0
#encoding=utf-8

import numpy as np
from PIL import Image
import glob,os

if __name__=='__main__':
    #prefix=input('Input the prefix of images:')
    prefix = 'prefix'
    files=glob.glob(prefix+'-*')
    num=len(files)

    filename_lens=[len(x) for x in files] #length of the files
    min_len=min(filename_lens) #minimal length of filenames
    max_len=max(filename_lens) #maximal length of filenames
    if min_len==max_len:#the last number of each filename has the same length
    files=sorted(files) #sort the files in ascending order
else:
    index=[0 for x in range(num)]
    for i in range(num):
        filename=files[i]
        start=filename.rfind('-')+1
        end=filename.rfind('.')
        file_no=int(filename[start:end])
        index[i]=file_no
    index=sorted(index)
    files=[prefix+'-'+str(x)+'.png' for x in index]

print(files[0])
baseimg=Image.open(files[0])
sz=baseimg.size
basemat=np.atleast_2d(baseimg)
for i in range(1,num):
    file=files[i]
    im=Image.open(file)
    im=im.resize(sz,Image.ANTIALIAS)
    mat=np.atleast_2d(im)
    print(file)
    basemat=np.append(basemat,mat,axis=0)
final_img=Image.fromarray(basemat)
final_img.save('merged.png')

我想我的方式错了...... 我怎样才能正确缝合它们？任何建议都表示赞赏。

Answer 1

试试这个（评论中的解释）：

from PIL import Image
from os import listdir, path

space_between_row = 10
new_image_path = 'result.jpg'
im_dirs = ['images/1', 'images/2']

# get sorted list of images
im_path_list = [[path.join(p, f) for f in sorted(listdir(p))] for p in im_dirs]

# open images and calculate total widths and heights
im_list = []
total_width = 0
total_height = 0
for path_list in im_path_list:
    images = list(map(Image.open, path_list))
    widths, heights = zip(*(i.size for i in images))
    total_width = max(total_width, sum(widths))
    total_height += max(heights)
    im_list.append(images)

# concat images
new_im = Image.new('RGB', (total_width, total_height))
y_offset = 0
for images in im_list:
    x_offset = 0
    max_height = 0
    for im in images:
        new_im.paste(im, (x_offset, y_offset))
        x_offset += im.size[0]
        max_height = max(im.size[1], max_height)
    y_offset = y_offset + max_height + space_between_row

# show and save
new_im.show()
new_im.save(new_image_path)

Answer 2

安装ImageMagick，然后告诉它你的两个目录在哪里。

#!/usr/bin/python3
##=========================================================
##  required  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
##
##  imagemagick.org/script/download.php
##
##=========================================================
##  libs  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

import subprocess as sp

##=========================================================
##  vars  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

offset  = 2                    ##  pixel gap between images
color  = '#000000'        ##  background color to fill gaps

dir1  = '/home/me/Pictures/topRow/'

dir2  = '/home/me/Pictures/bottomRow/'

##  note: windows dirs use double backslashes
##  'C:\\Users\\me\\Pictures\\topRow\\'
##=========================================================
##  script  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

row1args  = ['convert', '+smush', offset, '-background', color, dir1 + '*.png', 'row1.png']
row2args  = ['convert', '+smush', offset, '-background', color, dir2 + '*.png', 'row2.png']
merge  = ['convert', '-smush', offset, '-background', color, 'row*.png', 'merged.png']

##=========================================================
##  main  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

sp .call(row1args)
sp .call(row2args)
sp .call(merge)

##=========================================================
##  eof  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

在python中将图像拼接在一起

2 个答案: