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
和txt文件的内容如下所示: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]
目录也如下所示:directories
最佳答案
您应该使用一些具有语法检查功能的IDE,例如PyCharm CE,
不是第18行,而是第17行是问题所在:
您缺少右括号“)”
image_name = os.path.splitext(os.path.join(directory, file)[0]+'.jpg'
我认为你想要:image_name = os.path.splitext(os.path.join(directory, file))[0]+'.jpg'
关于python - 语法错误-使用边界框坐标裁剪图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62782166/