Assessing and improving the quality of your dataset.
Follow the Guided Tutorial
The best way to understand Roboflow's Dataset Health Check is by following the Dataset Health Check Guided Tutorial, which walks through a health check on a public dataset of hard hat construction workers.
Breaking Down the Health Check (Object Detection)
Understanding your dataset health helps you make informed decisions about preprocessing and augmentation for your dataset.
Images counts the number of images in your dataset, including those images contain missing or null annotations.
Missing annotations are images that do not have an accompanying annotation file.
Null annotations are images that deliberately do not contain any objects.