code confusing me in def._sample_negative about contrastiveseg HOT 4 CLOSED

For most semantic segmentation datasets Cityscapes, ADE, PASCAL-Context, class 0 denotes the non-labeled pixels. We ignore them in contrastive loss computation.

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@tfzhou So, the class 0 is the ignore index and not the background class? I mean, for the background class is applied also the contrastive loss. Right?

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For most semantic segmentation datasets Cityscapes, ADE, PASCAL-Context, class 0 denotes the non-labeled pixels. We ignore them in contrastive loss computation.

thanks for reply!

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Reference in

Have you solved this problem yet? The number 0 also means the background class in my segmentation task. I can't figure out that whether to use it in author's contrastive method.

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