make canvas independent

Image-Py / imagepy

Image process framework based on plugin like imagej, it is esay to glue with scipy.ndimage, scikit-image, opencv, simpleitk, mayavi...and any libraries based on numpy

http://imagepy.org

BSD 4-Clause "Original" or "Old" License

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make canvas independent #143

Closed qixinbo closed 3 years ago

qixinbo commented 3 years ago

Now the canvas can be used independently. No error information will show in the terminal.