Mac下Python 2.7环境中Simple Image Annotator安装使用求助

Hey there, let's walk through getting Simple Image Annotator up and running properly on your Mac with Python 2.7.16. I'll break this down step by step to fix that "No files" error and get you annotating images smoothly.

First, let's confirm everything is installed correctly:

• Verify your Python and pip versions match what you mentioned:

  python --version
  pip --version
  

  You should see outputs for Python 2.7.16 and a corresponding pip version (likely pip 1.x or 2.x for Python 2).
• Make sure you're in the correct project folder. If you cloned the repo to your Downloads folder, navigate there with:

  cd ~/Downloads/simple_image_annotator
  

• Confirm Flask is installed properly:

  pip show flask
  

  This should display details about your Flask installation. If not, re-run pip install flask to ensure it's set up.

The "No files" message happens because the path you provided (/images/directory) doesn't point to your actual image folder. Your images are in ~/Downloads/images, so you need to use the full absolute path or a valid relative path.

Option 1: Use the Absolute Path #

First, find your Mac username by running whoami in the terminal. Then use this format:

python app.py /Users/[YourUsername]/Downloads/images

For example, if your username is "jane", it would be:

python app.py /Users/jane/Downloads/images

Option 2: Use a Relative Path #

If your project folder is in ~/Downloads/simple_image_annotator and your images are in ~/Downloads/images, you can use a relative path (since ../ moves up one directory):

python app.py ../images

⚠️ Note: If your image path has spaces (e.g., Downloads/My Images), wrap it in quotes:

python app.py "/Users/jane/Downloads/My Images"

By default, annotations save to annotations.json in the project folder. To save them to a location of your choice (like your Downloads folder), add the --output flag to the command:

python app.py /Users/[YourUsername]/Downloads/images --output /Users/[YourUsername]/Downloads/my_image_annotations.json

Or with a relative path:

python app.py ../images --output ../my_image_annotations.json

Once you run the correct command, you'll see output in the terminal like:

Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

• Open your browser and go to http://127.0.0.1:5000/
• You'll see a list of your images. Click any image to start annotating:
  • Drag your mouse to draw a bounding box around the area you want to label
  • Type in your tag name and click "Add Annotation"
  • Click "Next Image" to move to the next one
• Annotations save automatically to your specified output file (or the default annotations.json) as you work.

• If you still get "No files":
  • Run ls /Users/[YourUsername]/Downloads/images in the terminal to confirm images are listed there. If not, double-check your image folder location.
  • Ensure your images are in supported formats (JPG, PNG, BMP are standard; avoid rare formats like RAW).
• If Flask throws errors:
  • The project might have specific dependency versions. Check if there's a requirements.txt file in the project folder, then run:

    pip install -r requirements.txt
    

• Python 2.7 note: Keep in mind Python 2.7 is no longer supported. If you run into compatibility issues down the line, consider upgrading to Python 3 (but this tool should work with 2.7 as per its setup).

内容的提问来源于stack exchange，提问作者Yoom