Issue a black background is added to the transparent image

[Ghaleb-alnakhlani]

I am using the SPADE model to generate objects from a label mask.
The model is training and everything is running smoothly, however, I have noticed that the images are not the same as the input image, I have prepared the dataset and made the background transparent, but when the model loads the images it adds a black background, thus the generated images will have a black background as well. If you don`t mind helping me to overcome this issue.
Input in train_B looks like this

Generated images in checkpoints have been changed to this (added black background)

Synthesized - Real - Label
So how do I get the images back to the original form similar to the image in train_B, without a background?

Best regards,
Ghaleb

[Ukuer]

the transparent region can not be converted to RGB space. you can make it with white or black bg, and post-process the final outputs.