Add steps to avoid category ID null when exporting as COCO in VIA #261
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Description
What is this PR?
Ensures the category ID entered is a number, so that the COCO export works correctly.
Why is this PR needed?
When following the steps, the data exported in COCO format produced a
null
category.This is because COCO does not accept a string category ID (but VIA does).
What does this PR do?
Clarifies in the labelling guide that the category ID needs to be an integer
References
this issue from the VIA tool
How has this PR been tested?
Separately using the VIA tool.
Does this PR require an update to the documentation?
It is an update of the existing guides.
Checklist: