myleott / mnist_png Goto Github PK

@myleott

Hi Myle Ott,

Great work 👍
I used your script to convert my EMNIST-digits to the required format and voila am happy with the results.
But I cant get around to do the same with letters! (emnist-letters-train-images-idx3-ubyte.gz | emnist-letters-train-labels-idx1-ubyte.gz)

Error:

writing ./train/X/0.png
writing ./train/H/1.png
writing ./train/Q/2.png
writing ./train/P/3.png
writing ./train/X/4.png
writing ./train/R/5.png
writing ./train/N/6.png
writing ./train/L/7.png
writing ./train/W/8.png
writing ./train/Y/9.png
writing ./train/K/10.png
writing ./train/O/11.png
writing ./train/S/12.png
writing ./train/V/13.png
Traceback (most recent call last):
  File "convert_mnist_to_png.py", line 76, in <module>
    path.join(output_path, dataset))
  File "convert_mnist_to_png.py", line 55, in write_dataset
    output_filename = path.join(output_dirs[label], str(i) + ".png")
IndexError: list index out of range

I'm new to the field. Any help would be appreciated.
Thanks!

Hello, sorry
Thanks for sharing!!
I was trying to use it but I had an error, could you help me, please?
I downloaded and I tested with the original mnist compressed and uncompressed and also with python 2 and python 3

python convert_mnist_to_png.py /home/andre/mnistX/in3/ /home/andresviv/mnistX/out/

Log:
andresviv@andresviv-ThinkPad-P50:/mnistX/ULTIMATE/01/mnist_png-master$ python convert_mnist_to_png.py /home/andresviv/mnistX/in3/ /home/andresviv/mnistX/out/
writing /home/andresviv/mnistX/out/training/0/0.png
writing /home/andresviv/mnistX/out/training/3/1.png
Traceback (most recent call last):
File "convert_mnist_to_png.py", line 68, in
path.join(output_path, dataset))
File "convert_mnist_to_png.py", line 47, in write_dataset
output_filename = path.join(output_dirs[label], str(i) + ".png")
IndexError: list index out of range
andresviv@andresviv-ThinkPad-P50:/mnistX/ULTIMATE/01/mnist_png-master$

Thank you

Hi,

Why do you have about 60k images per class while the total number of the MNIST data is 60K?

Please I'm having problems understanding what the arguments in the console are meant to be. I keep getting this: usage: convert_mnist_to_png.py <input_path> <output_path>. Can I get an example of what it should be?