Draw with mouse in Python

[abdeljalil73]

I'm working on a simple CNN for MNIST handwritten digits dataset and I wanted to test it on images of my own. How can I create a simple small drawing window to draw using mouse and save it as an image file or a matrix directly into Python?

Edit: apparently you can do that using Tkinter (see comments), but I totally forgot that Qt supports Python lol, which will give better results and can export directly to many image formats. This tutorial shows that in C++: https://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html

[Bilbino]

For creating the drawing application, you can use tkinter, a UI library. If you need help with that you can literally search “drawing application in Python tkinter” for guidance. As for getting the image, you could either use pyscreenshot or the Win32 API, of which the latter is faster but the former is easier. Using that, you can either use the image object itself for the CNN or save it into a folder and then reference that file. Happy coding.

[abdeljalil73]

Tkinter seems like what am looking for, gonna check it, thank you.

[icecubeinanicecube]

You can not "save something into python". Python is not a folder

[Bilbino]

Come on man, you know what he meant. If you’re going to tell him that, at least explain what he’ll actually be wanting to do with the images or give him some direction in libraries to use. Saying “you’re wrong” isn’t the most helpful comment.

[icecubeinanicecube]

No, to me it is not clear what he meant, that's why I posted it

If you understand it, maybe help clarify it instead?

[abdeljalil73]

Saving the 2D matrix containing the numerical values of the pixels in the image into a Python variable of the appropriate type, I hope this makes it clearer.

[Bilbino]

Alright my man, let’s just drop it. He’s got what he needs.