循环浏览Google Colab中多个文件夹中的不同图像并将图像格式从一种转换为另一种

如何解决循环浏览Google Colab中多个文件夹中的不同图像并将图像格式从一种转换为另一种

As shown in the image: The 11 folders in train1_set has 600 images each. I want to convert its format from png to jpg of all images and save them to Train_jpg in similar format. For that i have already crated 11 empty folders in Train_jpg with corresponding names same as that in train1_set.

为此任务，我编写了以下代码：

folder_path = '/tmp/characters/train1_set'
for fldr in os.listdir(folder_path):
    sub_folder_path = os.path.join(folder_path,fldr)
    for filee in os.listdir(sub_folder_path):
        file_path = os.path.join(sub_folder_path,filee)
        im = Image.open(file_path)
        rgb_im = im.convert('RGB')
        rgb_im.save('/tmp/Train_jpg/{}/{}.jpg'.format(fldr,filee.split('.')[0]))

但是我遇到了错误：

FileNotFoundError                         Traceback (most recent call last)
<ipython-input-8-ea4ef81a0e50> in <module>()
      7         im = Image.open(file_path)
      8         rgb_im = im.convert('RGB')
----> 9         rgb_im.save('/tmp/Train_jpg/{}/{}.jpg'.format(fldr,filee.split('.')[0]))
     10 

/usr/local/lib/python3.6/dist-packages/PIL/Image.py in save(self,fp,format,**params)
   2097                 fp = builtins.open(filename,"r+b")
   2098             else:
-> 2099                 fp = builtins.open(filename,"w+b")
   2100 
   2101         try:

FileNotFoundError: [Errno 2] No such file or directory: '/tmp/Train_jpg/ગ/aakar-medium_38_ગ_15.jpg'

请帮助我解决问题。预先感谢。

解决方法

您的代码中有一些错误已得到纠正。
因为filee没有正确的路径，所以您收到错误消息。
代码：

import os
from PIL import Image
folder_path = '/tmp/characters/train1_set'
target_path = '/tmp/Train_jpg'
for fldr in os.listdir(folder_path):
    sub_folder_path = os.path.join(folder_path,fldr)
    if fldr not in os.listdir(target_path):
        os.mkdir(os.path.join(target_path,fldr))
    for filee in os.listdir(sub_folder_path):
        file_path = os.path.join(sub_folder_path,filee)
        im = Image.open(file_path)
        rgb_im = im.convert('RGB')
        rgb_im.save('data/img1/{}/{}.jpg'.format(fldr,filee.split('.')[0]))