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openimages / dataset

The Open Images dataset
https://storage.googleapis.com/openimages/web/index.html
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segmentations.csv mask 3 coordinates #104

Closed apoorvcn47 closed 2 years ago

apoorvcn47 commented 2 years ago

Hi, New to ml. I am using V6 for semantic segmentation. in segmentations.csv, it has mask coordinates under the header clicks. These are set of three coordinates with last coordinate being 0 or 1. Can anyone please explain to me what does this last coordinate stand for?

Thanks

jponttuset commented 2 years ago

Hi @apoorvcn47, The masks themselves are in separate PNG files. These clicks are "corrective clicks" which means that are where the annotators clicked to correct the mask either to say that they are indeed foreground (1) or background (0). More details are in the [https://storage.googleapis.com/openimages/web/download.html](Download page) under "Format > Instance segmentation masks" Best,