Annotation import and export

Picsellia allows you to create your Annotation by importing your own Annotation file on an existing DatasetVersion.

1. Annotation formats

Picsellia natively handles the following Annotation formats:

• COCO
• Pascal VOC
• YOLO
• ViaLabel

2. Import Annotation files

From the Assets overview, you can click on Annotations > Import to open the Annotation files import modal.

From this modal, you must indicate:

• The format of the Annotation file
• The files containing Annotation related to the images composing the current DatasetVersion.
• The expected behavior if the DatasetVersion already contains Annotation created by your user (keep existing Annotation, replace with new Annotation, concatenate new and existing Annotation)

If the files contain Annotation of images that are not part of the DatasetVersion, Picsellia will simply ignore them and only import the Annotation related to images that are part of the current DatasetVersion.

Then you just need to click on Import and the Annotation will be created on your DatasetVersion. You can now visualize through the Assets overview the Annotation.

Please note that the import of annotations in COCO format also supports the Text field related to each box, the Asset Attribute, and the Shape Attributes.

3. Edit Annotation

Once imported the Annotation can still be modified directly on Picsellia using the integrated Annotation Tool.

Annotation Tool documentation is available here.

4. Export Annotation

At any moment, you can export the Annotation of all the Asset of an annotated DatasetVersion. You can choose the format of the Annotation you are about to export among COCO, Pascal VOC, YOLO, and ViaLabel.

To do so, you can click on Annotations and choose the Annotation format. The file will be generated by Picsellia and downloaded on your machine. The Annotations export process can take several seconds depending on the DatasetVersion size so please be patient.

In case an Asset has more than one Annotation, it is the one displayed in the Details view that will be exported, meaning either the one in status Accepted or the most recently updated one.

5. Duplicate Annotation

In case an Annotation has to be reproduced on all the unannotated Asset of a DatasetVersion, you can use the Duplicate button.

To do it properly, you need to select the annotated Asset of your DatasetVersion, for which the Annotation has to be duplicated and click on Duplicate. A modal will open; in this one, you just need to click on Duplicate as shown above.

Automatically, all the Asset of the current DatasetVersion that doesn't have Annotation yet will get the Annotation of the selected Asset. It means that the existing Annotation won't be overwritten.