Issues with Semantic Segmentation on custom datasets

[HarshitSheoran]

The way I do it in EVA or MMSegmentation is that I do 4 classes (1 background + 3), reduce_zero_label = False and ignore_index=0 in every loss function (CE and Dice in this case), I do those steps and and my training works in other libraries, is this method generally wrong as I can not train properly in ViT-Adapter with this? I am not seeing any error just extremely bad predictions at very easy task

I also have confusion with how stuff + things work, when I do 1 stuff and 3 things the num_classes goes to 5 instead of 4?

@czczup Please help

[lgwplay]

Have you solved this problem, I have a similar problem when I do semantic segmentation, there is no problem, it can be trained correctly on deit, but on beit+mask2former, the prediction in each category is close to 0

[HarshitSheoran]

Nah, I never figured it out