https://github.com/elazarcoh/simply-view-image-for-python-debugging?tab=readme-ov-file

visual studio code extension simply view the image of the image variables when debugging python
https://github.com/elazarcoh/simply-view-image-for-python-debugging?tab=readme-ov-file

vscode-extension

Last synced: 1 day ago
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visual studio code extension simply view the image of the image variables when debugging python

• Host: GitHub
• URL: https://github.com/elazarcoh/simply-view-image-for-python-debugging?tab=readme-ov-file
• Owner: elazarcoh
• License: mit
• Created: 2020-09-02T06:06:40.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2025-03-28T22:30:23.000Z (about 2 months ago)
• Last Synced: 2025-05-08T00:31:26.923Z (7 days ago)
• Topics: vscode-extension
• Language: Rust
• Homepage: https://marketplace.visualstudio.com/items?itemName=elazarcoh.simply-view-image-for-python-debugging
• Size: 8.7 MB
• Stars: 64
• Watchers: 1
• Forks: 7
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# simply-view-image-for-python-debugging

Based on the great work of [john-guo](https://github.com/john-guo/simply-view-image-for-python-opencv-debugging), a more general version for the extension.

## Features

* Built-in editor for viewing images:

  ![image-values](readme-assets/values-example.png)

  ![heatmap](readme-assets/heatmap-example.png)

  ![segmentation](readme-assets/segmentation-example.png)

* Support in Jupyter notebooks

* Support view image from expression

  * **NOTE when using this feature, the expression is actually executed, so beware of side-effects**

  ![Expression View](expression-example.gif)

* Support plot (matplotlib, plotly) view

  * Currently supports:

    * matplotlib.pyplot.Figure

    * matplotlib.pyplot.Axis

    * plotly Figure (saving backend is needed, see [here](https://plotly.com/python/static-image-export))

  

  ![Plotting View](pyplot-example.gif)

* Support Tensor view: pytorch and numpy

  * `numpy.ndarray` is considered a tensor if it has 4 channels, or 3 channels but it does not pass as an single image. `scikit-image` is required for this.

* Hover over image variable to see the image shape (sometime it's not visible/easy to find in the general debug hover).

### Watch view

Added a watch view, for watching image/plot/tensor variables, while refreshing the image-view at each breakpoint.

* Support custom python expressions (again, beware of side-effects)

![Watch View](watch-view.png)

## Q & A

* **Memory blows-up when using the extension.**

  It might happen when (very) large, non-`numpy` array object, is being used.

  The solution to it is to set the `restrictImageTypes` setting to `true` (should be by default).

* **Selecting different call-stack frame does not work as expected.**

  

  Use the command: `Debug View Python: Update Frame ID`.

  Why:

  > I couldn't find a way to get the current frame, if it was changed by the user (again and again).

  > So, I've added a command to force VSCode "tell" me the current frame.

  > It's a bit hacky, but it works, I think.