Usecase question

[SB2020-eye]

Usecase question

[hendraet]

I tried to use GANwriting for a similar task and tried to synthesise numbers. From experience, I can tell you that it won't work if you don't have any numbers in your dataset and it will not work properly if you have very few numbers or a heavily imbalanced dataset. The synthesised numbers will be heavily distorted if the network is even able to synthesise anything.
I guess, the same is true in your case. In order to use GANwriting, you should have at least some samples of every character in your alphabet and then try to balance your whole training dataset by using additional augmented samples. But be aware that even this augmentation will likely not lead to the desired results.