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The VAE model I used here https://github.com/keras-team/keras-io/blob/master/examples/generative/vae.py. It can produce very well results for the minist and fashion minist dataset.

But when I use my datasets, the results are pretty terrible. So I sincerely hope you can help me to provide me some guidance.

The problems are as followings:

  1. My datasets are composed of many circles in the image, as shown:

enter image description here

The shape of the datasets is [238, 28, 28, 1], and the range of pixel value is between 0 and 1 (floats32).

  1. But the result is terrible.
    The loss value
    enter image description here The genetive images:
    enter image description here
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