【发布时间】:2020-10-28 02:50:54
【问题描述】:
我想使用最后四个数字(代表边界框的中心和尺寸)获得坐标,并从具有相同名称(.jpg 格式)的图像中裁剪边界框。
我写了以下代码:
import os
from PIL import Image
from os import listdir
directory = "/home/masoud/masoud/crop/obj"
for file in os.listdir(directory):
if file.endswith(".txt"):
with open(os.path.join(directory, file), 'r') as f:
for line in f: # changed to file handle
line = line.rstrip() # remove trailing '\n'
nums = line.split()
four_nums = nums[1:5]
# print(four_nums)
image_name = os.path.splitext(os.path.join(directory, file)[0]+'.jpg'
img = Image.open(os.path.join(directory, image_name))
width, height = img.size
# # Setting the points for cropped image
left = width * (nums[1]- nums[3]/2)
top = height * (nums[2]- nums[4]/2)
right = width * (nums[1]+ nums[3]/2)
bottom = height * (nums[2]+ nums[4]/2)
# # Cropped image of above dimension
# # (It will not change orginal image)
im_cropped = img.crop((left, top, right, bottom))
im_cropped.show()
im_cropped.save('/home/masoud/masoud/crop/cropped-images', 'JPEG')
else:
continue
txt 文件内容如下:
0 0.3547 0.5096 0.7293 1.0258
但我收到以下语法错误。
File "/home/masoud/masoud/crop/crop.py", line 18
img = Image.open(os.path.join(directory, image_name))
^
SyntaxError: invalid syntax
[Finished in 0.4s with exit code 1]
[cmd: ['/home/masoud/anaconda3/bin/python3', '-u', '/home/masoud/masoud/crop/crop.py']]
[dir: /home/masoud/masoud/crop]
[path: /home/masoud/bin:/home/masoud/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin]
目录也是这样的:
【问题讨论】:
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@HolgT 我使用 Sublime,但它没有突出显示没有括号。作为初学者,你认为 Pycharm 会是一个更好的选择吗?
标签: python error-handling python-imaging-library bounding-box