Tensorflow - Testing a mnist neural net with my own images

Question

I\'m trying to write a script that will allow me to draw an image of a digit and then determine what digit it is with a model trained on MNIST.

Here is my code:

Answer 1

I found my mistake: it encoded the reverse, blacks were at 255 instead of 0.

 data = np.vectorize(lambda x: 255 - x)(np.ndarray.flatten(scipy.ndimage.imread("im_01.jpg", flatten=True)))

Fixed it.