If you tried the demo and were remarkably unimpressed, give it a try again and it ought to work better (make sure and manually refresh - F5 so you don't have the old page cached).
I read how the MNIST data was generated and followed suit: Find the bounding box of the drawn image and scale it down to 20x20, preserving the aspect ratio. Put that 20x20 image into a 28x28 image using the center of mass of the pixels as the center point.
There is still some error due to how different mouse drawn and hand drawn numbers look, but I've found it to be a lot more accurate.
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[ 48.1 ms ] story [ 28.8 ms ] threadI read how the MNIST data was generated and followed suit: Find the bounding box of the drawn image and scale it down to 20x20, preserving the aspect ratio. Put that 20x20 image into a 28x28 image using the center of mass of the pixels as the center point.
There is still some error due to how different mouse drawn and hand drawn numbers look, but I've found it to be a lot more accurate.
Demo: http://demofox.org/MNIST1.html
Example training data to see what i mean about difference between hand drawn and mouse drawn images: https://i2.wp.com/blog.demofox.org/wp-content/uploads/2017/0...
Thanks for the feedback on that... it was a mistake rolling it out in such a broken state.