Question

我正在将TIF文件更改为JPEG，以便对其运行对象检测工具。我找到了解决方法here（由user2019716给出的答案），但是由于某种原因，我的文件无法读取。更改的唯一一行是第一行。我想使用其他目录。我是否以某种方式搞砸了路径？

import os, sys
from PIL import Image

for infile in os.listdir("C:/Users/NAME/Desktop/FOLDER"):
    print("file : " + infile)
    if infile[-3:] == "tif" or infile[-3:] == "bmp" :
       outfile = infile[:-3] + "jpeg"
       im = Image.open(infile)
       print("new filename : " + outfile)
       out = im.convert("RGB")
       out.save(outfile, "JPEG", quality=90)

错误：

C:\Users\NAME\anaconda3\envs\Scripts\python.exe C:\Users\NAME\Desktop\Scripts\TIFF_to_JPG.py
file : __0.tif
Traceback (most recent call last):
  File "C:\Users\NAME\Desktop\Scripts\TIFF_to_JPG.py", line 10, in <module>
    im = Image.open(infile)
  File "C:\Users\NAME\anaconda3\envs\Scripts\lib\site-packages\PIL\Image.py", line 2891, in open
    fp = builtins.open(filename, "rb")
FileNotFoundError: [Errno 2] No such file or directory: '__0.tif'

Process finished with exit code 1

Answer 1

您是否从“ C：/用户/名称/桌面/文件夹”运行代码？否则，将导致错误，因为您仅提供文件名，而不是绝对路径。如果您从中运行代码，则Python希望找到该文件。您可以尝试：

# -*- coding: utf-8 -*-

import os
from PIL import Image

input_dir = "C:/Users/NAME/Desktop/FOLDER/"
# This can differ from input_dir
output_dir = "C:/Users/NAME/Desktop/FOLDER/"

for infile in os.listdir(input_dir):
    print("file : " + infile)
    if infile[-3:] == "tif" or infile[-3:] == "bmp" :
       outfile = infile[:-3] + "jpeg"
       im = Image.open(input_dir + infile)
       print("new filename : " + outfile)
       out = im.convert("RGB")
       save_path = output_dir + outfile 
       out.save(save_path, "JPEG", quality=90)

Python：将TIF转换为JPEG

1 个答案: