在Google Colab中加载图像

问题描述

我的Jupyter Notebook具有以下代码，可将图像上传到Colab:

My Jupyter Notebook has the following code to upload an image to Colab:

from google.colab import files
uploaded = files.upload()

我被提示输入文件.哪个被上传.

I get prompted for the file. Which gets uploaded.

我使用以下方法验证文件上传是否成功:

I verify that the file upload was successful using:

!ls

我看到它在那里.

我使用以下命令检查当前工作目录:

I check the current working directory using:

import os
os.getcwd()

它告诉我它是/content

and it tells me that it is /content

现在，以下任何呼叫...

now, any of the following calls...

cv2.imread(img_path, 1)
cv2.imread(img_path, 0)
cv2.imread(img_path)

无法加载文件.

无论我使用的是文件名还是完整路径，它们也都会失败.

they also fail whether i'm using just the file name or the full path.

有什么想法吗?

推荐答案

使用此功能上传文件.也会保存它们.

Use this function to upload files. It will SAVE them as well.

def upload_files():
  from google.colab import files
  uploaded = files.upload()
  for k, v in uploaded.items():
    open(k, 'wb').write(v)
  return list(uploaded.keys())

更新

现在(2018年9月)，左窗格具有文件"选项卡，可让您轻松浏览文件和上传文件.您也可以通过双击文件名进行下载.

Update

Now (sep 2018), the left pane has a "Files" tab that let you browse files and upload files easily. You can also download by just double click the file names.

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